I posted on Instagram last week pictures of preparing agar for my go-to first week of school lab: testing the 5 second rule. It’s a great lab for back to school because students are super engaged and it’s a good way to review variables and how to set up a controlled experiment. I had a bunch of people ask questions about how I prepared the agar and set up the lab, so here is a blog post to answer all your questions!
 
WHAT MATERIALS WILL I NEED?
-Sterile petri dishes
-Dehydrated nutrient agar
-Distilled water
-Hot plate with stir capabilities
-Stir magnet
-Heat resistant gloves
-Goggles
-Optional: Autoclave and incubator

DO THEY NEED TO BE STERILE? DO I NEED AN AUTOCLAVE?
If you want to have accurate data, yes, your petri dishes need to be sterile.
Each year, I open a new sleeve of plastic petri dishes so I can assure they are sterile. If you don’t have access to new ones you can re-use petri dishes, but make sure to either sterilize them in an autoclave or clean them thoroughly in a bleach solution followed by a distilled water rinse.
 
HOW DO I MAKE AGAR PLATES?
Methods will vary slightly depending on the agar you ordered, (directions should come with your nutrient agar, or should be available online from the vendor) but here is the general process:

1. Measure out the desired amount of nutrient agar and distilled water and pour into a clean beaker. For the agar I order, the recipe calls for 23g of dehydrated agar per 1 liter of distilled water. (Note: 1 liter of agar will fill roughly 30 - 40 petri dishes).
2. Add a stir magnet to the beaker and place on your hot plate. Turn on both the heat and the stir settings.
3. Continue to heat and stir your agar until it is boiling. This may take a while, but be patient- if you don’t wait for it to boil, your agar won’t solidify once it cools.
4. If you don’t have access to a hot plate, you can use the microwave. Place beaker and agar mixture into the microwave and heat for 3 minutes. Continue heating in 1 minute bursts until the agar is completely dissolved and the mixture begins to boil.
5. As you are waiting for the agar to boil, lay out your sterile petri dishes on a heat resistant counter. Keep the lids on as much as possible to avoid any contamination.
6. Once agar has come to a boil, remove from heat using heat resistant gloves. Lift the lid on a petri dish, carefully pour agar into the petri dish until it is roughly 2/3 of the way full, and promptly return the lid. Continue until all your agar has been used.
7. Allow the agar to solidify at room temperature- this shouldn’t take more than 15 minutes.
8. Once the agar has solidified and cooled, store them upside down in the fridge until you are ready to use them. Storing them upside down will ensure that any condensation drips onto the lid, not onto your agar.
 
HOW MANY DAYS BEFORE USE CAN I POUR THE PLATES?
I typically pour the petri dishes a day or two before I need them and store them in the fridge. Petri dishes in the fridge will be good for a few weeks before they begin to dry out, but the sooner you use them the better.
 
I HAVE 150 STUDENTS. HOW MANY PLATES WILL I NEED TO PREPARE?
It can be pricey to pour a ton of plates every year and with 150 students it would be way too expensive (and a lot of work!) to pour every student their own plate.
When I do this lab with my students, I put them in groups of 4. With roughly 32 students per class, I pour 8 plates per class. As a lab group I let them choose a variable to test and have them whiteboard their experimental design. Some groups want to change the amount of time the food is on the floor, other groups want to test different food types, and other groups want to try out different dirty surfaces. Once I’ve approved their design (to make sure they have a control) they can begin the lab.

DO I NEED AN INCUBATOR?
Okay, so your students set up the lab, but do you need to leave them in an incubator?
If you want quick results (overnight) then an incubator will speed up the process. But if you don’t have access to one, just let the plates sit for an extra day or two in your room temperature classroom and you will still get plenty of bacteria growth. Again, leave them upside down (agar side up) so you don’t have issues with condensation dripping into your agar.

HOW TO STUDENTS COLLECT DATA?
Since I do this lab the first week of school, this is an excellent time to review the difference between quantitative and qualitative data. Once students get their plates back, I have them make both qualitative observations and measure quantitative data.
You can have students collect quantitative data by counting colonies, but a much easier way is to use a grid and calculate percent coverage. You can purchase gridded stickers that stick onto your petri dish lids, or just do it yourself with a fine point sharpie marker. All students have to do is count the number of squares that have bacterial growth, divide it by the total number of squares, and multiply it by 100 to turn it into a percentage.

HOW DO I DISPOSE OF THE PLATES?
It is important you do not place your plates in the trash without first taking some precautions. While bacteria in small numbers may be harmless, once cultured into millions of cells they can pose a greater threat. There are a few ways to properly dispose of your used agar plates, depending on what you have available:

1. If you have an autoclave, you can autoclave your plates per the directions on your autoclave (generally at least 30 minutes).
2. If you used glass petri dishes and don’t have an autoclave, prepare a 20% bleach solution and spray your plates down. Allow the bleach to soak into the agar for 1 hour before placing agar in the trash. Then thoroughly clean your empty petri dishes again with a bleach solution and distilled water rinse.
3. If you used plastic petri dishes that you can afford to part with, you can place them in bio-hazard bags and have your district arrange for bio-hazard pick up. It doesn’t hurt to spray them down with a 20% bleach solution before placing them in bio-hazard bags.

I hope that answers all your questions! If you are interested in the lab handout I use with students to test the 5 second rule, you can find it HERE!

Today is my first day back to school and my 12th year teaching. (No, I'm not actually typing this August 5th, I scheduled it out in advance. Because we all know the first day is EXHAUSTING and I'll be in bed by 8pm. Plus this is my first back-to-school ever being pregnant, so maybe I'll be in bed by 7...)

But as I look back on the past 12 years I know for a fact I wouldn't have made it through all those tough times without some amazing colleagues and mentors. There were days during my first year I would go home and cry and think "I just can't do this." And even when I switched schools and had 5 years of experience under my belt I felt all of those feelings again. If your significant other isn't a teacher, you can vent all you want and they can try and be empathetic but they just won't get it. You need to find a mentor to help you maintain your sanity. Someone asked me once on my instagram to do a blog post about finding a teacher mentor and I feel like back to school season is the perfect time to discuss. So here we go!

HOW TO FIND A TEACHER MENTOR:
1. If you are a new teacher, this could be (and should be) something you ask during the interview process. Does the school provide you with a mentor teacher? Will you have a structured grade-level support team? What resources will they provide you as a new teacher? I promise you won't sound needy, you will sound like you want to be prepared.

2. Many districts have a science content specialist. They get paid to help you teach science well, so utilize them! My district also has something called a "professional development specialist" who runs monthly PD sessions for new teachers and sits in on lessons once a quarter. Don't be afraid to send emails, ask them to come sit in on a lesson or two, or offer guidance on how to better introduce a new topic.

3. If your school doesn't have a specified person to help new teachers, go ask an administrator for some recommendations. Have something in mind you want to improve- maybe classroom management. Go ask your administrator which teachers on your campus have exceptional classroom management and then give up your prep one day (I know.... but it will be worth it, I promise) to go watch them teach. If you are afraid to approach them yourself, see if your administrator will send your colleague an email asking for permission for you to come observe, and have them cc you on the email. Even as a veteran teacher, I still have things I can improve and I benefit greatly from watching others teach.

4. Utilize your grade level or department team. Hopefully your school sets aside some time during the week for you to meet with your grade level team or department. Observe who has a personality similar to you that you know you would get along with and make an effort to get to know them. During your meetings, don't be afraid to ask questions on how they teach a concept, how they manage the student that ALWAYS needs to go to the bathroom, or how they stay on top of grading. Not every suggestion will work for you, but it's good to get different ideas and perspectives.

YOU'VE FOUND A MENTOR, BUT NOW WHAT?
I know the first year of teaching I had people always checking in on me asking "do you need help or have any questions?" My response was typically "I'm sure I'll have questions... but I don't even know what to ask yet." It's overwhelming. So here are some tips on things you should ask for help on in the first few weeks or months of school:

1. Ask about how to handle crisis situations. This includes fire drills, lock downs, or even a kid going crazy in your class. Who are you supposed to call?

2. Ask for classroom management tips. This could include: how to handle bathroom breaks, kids that constantly blurt out answers, the kid who can't sit still, or the student who can't stay awake no matter how engaging your lesson is. Veteran teachers have dealt with all of these situations and can likely give you some helpful tips.

3. Dress code. Does your school have a student dress code that you need to enforce? What should you do if students are breaking dress code? Is there a teacher dress code you should know about? At my first school I got hired mid-year so I missed all of the beginning of the year meetings. One Friday I wore flip flops to school (I know, not the most professional decision I ever made) but got in trouble for breaking the teacher dress code.... which I had no idea about. Ask!

4. Timing and pacing of lessons is hard. Ask what other colleagues do if class finishes a few minutes early. Do they allow free time? Do they have any fun activities or ideas to share? (Here is an idea of what I do if class finishes a few minutes early).

5. Ask them to help you set up your gradebook. How often do they put in grades? What categories do they use? Is there a standard school policy? Do you have to turn in progress reports?

6. The first time you need to call a parent for a behavior issue can be scary. Ask them to sit with you the first time you call home and give you some pointers. (Tip: don't just call home for your problem students, call home when kids do something stellar too! It will make their day).

7. At my first school we had something called "think time" which is essentially "time out" time. This is for the student that didn't do anything bad enough to warrant calling the office or a referral, but is driving you crazy and knows exactly how to push your buttons. Sometimes having a 5 minute break from that student is enough for you to regain your composure and focus on the other students. Ask a neighboring teacher if they have a spare desk in their classroom you could use as a "think time" desk. If a kid was driving me nuts, I'd send them over with a form to fill out that had them answer a few questions reflecting on their behavior. Once they felt ready to come back and re-join the lesson, they would. (Tip: try and find a teacher of a different grade level to be your think time buddy. If the other class is the same grade level, your think time student will probably have friends in there and become a distraction).

8. Ask your mentor teacher to come watch you practice a lesson before your observation. They can give you feedback and tips to score well on the evaluation rubric.

9. Ask for lesson and lab ideas. If you are teaching a concept you aren't completely familiar with, ask someone in your content area how they approach it or what labs they use to supplement the lesson.

10. There will be a time when you wake up with a fever and think "OMG I don't have sub plans ready, I'll have to go in with this 104 degree fever!" Have an emergency sub plan ready and on your desk in case this happens. Ask about the process for calling a substitute teacher. How many sick days do you have? Do they roll over to the next school year if you don't use them? Are there rules about how many sick days you can take in a row without providing a doctors note?

While the first year is tough, I promise it gets easier- especially when you have supportive people beside you. If you have any questions or need some more specific tips, leave them in the comments!
(If you are a new teacher and want to see my top 10 tips for the first year, you can read them here!)

I'm currently two weeks into school, have 140ish students, and have already learned their names. I'm not here to brag... it took work. You might be thinking "Wow! She is so good with names!" but that can't be further from the truth. I am one of those people that if I meet you, shake your hand, and we introduce ourselves, I will likely have forgotten your name 2 minutes later. (Maybe because I'm not an active listener? We should ask my husband...) The point is learning names is not something that comes easy for me. It takes a lot of work. But it is important, so I make the extra effort. 

Have any of the following excuses crossed your brain?
"I'm just not good with names."
"I'm just not good with faces."
"But I have 150 names to learn!"
"I'll learn them eventually... I just wait for it to happen organically." 
"Many are too hard to pronounce."
If you are guilty of any of these, you aren't alone. But I promise you can learn them with a little extra effort and it makes a huge difference. 

Why learning names is so important
It is important for you to learn your students names as quickly as possible for multiple reasons:

• First, your name is your identity. Using "kiddo" or "hon" is not the same as calling a student by their name. Plus, calling a student "sweetie" may seem perfectly acceptable to you, but may offend a student. 
• Students will respect you more when they know you put in extra effort to learn their name quickly, AND pronounce it correctly. You are going to get students with names that are difficult to pronounce, but keep practicing. I always ask students to call me on it if I pronounce their name incorrectly. There is nothing worse than calling a student the wrong name for 2 months and finding out later you have been saying it wrong. 

​
Tips to learn names quickly
I'm in my 11th year of teaching, and have found methods that help me learn student names relatively quick. I encourage you to skim the list and try a few that might work for you. 

1. Use a seating chart and name tents. On day 1, students come in with a seating chart. Seating charts not only help with classroom management, but also help me learn names. If you allow students to pick their own seats, they will shuffle seats on you and make it harder to put names with faces. I also have students make name tents on the first day and tell them they have to keep them visible the first week of school. 
2. Set a goal to learn their names by a certain date. I always have a goal to learn my students' names by the end of the first week. This doesn't always happen, but that's my goal. If you think it will take you 2 weeks or 3 weeks, make that your goal. Let the students know your goal, and offer some sort of reward if you don't meet it. For example, tell the class "If I don't know everyone's name by the end of the first week, then I'll bring in candy for the class." By telling the students your goal you are: a) holding yourself accountable, and b) giving yourself an incentive- If you learn their names, you save a few bucks. (Note: you don't have to do rewards that cost money. You could hand out no-homework passes or do a few minutes of free time at the end of class instead). 
3. Say their names as they enter class. I try my best to stand by the door as students enter class every day. On lab days when you are scrambling to get ready for the next class this can be difficult, but whenever possible I'm at the door. When students enter those first couple weeks I say "Good morning __(student name)__." If I don't remember their names, they always help me out.
4. Pass back papers yourself. If your students are like mine, you always have a handful of students eager to pass back papers, and generally I'm happy to get the help. But the first few weeks I always pass back papers myself. I'm not sure why, but this tip is probably the one that helps me the most. Putting written names (handwriting) with faces really helps me. Once I have mastered names, then the paper passing back goes to my antsy student helpers. 
5. Pictures. Our grade book and attendance program loads in student ID pictures. The first week during my prep hour and in the evening I really spend time staring at those photos. Generally the pictures are a year old (seniors have their junior pictures shown) so they don't always look exactly like their picture, but it still helps. 

I promise you if you learn your students' names quickly the beginning of the school year will go much smoother. They will perform better in your class. Lets stop the "if the teacher knows my name the first week that's a bad sign" narrative. I know you can do it! Do you have any other tips? Leave them in the comments! 

We're baaaaack! I've teamed up with a bunch of my science buddies to do another back to school giveaway! Back to school is a stressful time, and we would like to help! We are giving away FOUR $100 TeachersPayTeachers gift cards that you can use to save a lot of time and get some awesome resources for your classroom.

To enter, you need to hop from blog to blog and collect all of our secret words that form a sentence.
Once you have the sentence, go to any one of the Group Giveaway Rafflecopter boxes, on any one of our blog pages, and type in the secret sentence in the right order. We will pick four winners after it ends after midnight on Friday August the 17th. My Secret Word is #10: “IS”

A bunch of us are also hosting our own individual giveaways as well, so make sure you stop by and enter to win! All in all, there will be over $1000 worth of prizes given away this week!
For my individual giveaway, I’m giving away two of my popular Writing Prompt Bundles. You can see it here on TeachersPayTeachers. Enter my writing prompt giveaway below and make sure you hop to the next blog to pick up all the secret words!

Your first year teaching is going to be one of the hardest years of your career. I frequently went home near tears thinking "I just can't do this. It is too hard." But I promise you, it gets easier! I'm in my 10th year teaching and I spend a lot less time planning and preparing than I used to. I write a lot fewer referrals than I used to. Overall everything just gets easier. Looking back, here is a list of 10 things I wish I could have told my first-year-teacher self:

1. Find a mentor teacher 
This is one thing I was superbly blessed with. My first job was at a middle school and there was only one other science teacher besides myself. He is nearing retirement, but I've been lucky to teach with him the past 10 years. He is incredibly knowledgeable about all things science and is always happy to explain things to me when I need some clarification before a lesson. Don't be afraid to admit you don't understand something! Because you can't teach it well unless you understand it well.
Mentor teachers can help with content knowledge, share ideas of what labs work and what labs don't work, give you classroom management tips, and be a shoulder to cry on when your spouse just doesn't get what you are going through (because if your spouse isn't a teacher, they won't get it). If you aren't sure where to find one, or what to ask, check out this blog post.

2. Don't re-create the wheel ​
There is a wealth of science lessons out on the internet for free. Take advantage! Scour the internet before a new unit and find everything you can. Look for facebook groups of middle school or high school science teachers. Read blog posts. Look for interactive websites that students can learn on. Check out Teachers pay Teachers. Don't spend your weekends making powerpoints and worksheets when someone else has already done the work for you. 

3. Always do the lab first 
There is nothing worse than spending hours prepping a lab, getting the kids excited, and by the end of the lab the data is awful and the lab was an utter failure. The easiest way to avoid this is by doing the lab yourself before you try it with students. As you do the lab, try and identify places students might get confused or make mistakes. Make sure to clarify those things and model the lab procedures to your students before beginning. 

4. Predict the pacing of the lesson
One of the hardest things for me my first few years was pacing. I didn't want my lessons to end early, and I didn't want to run out of time. One piece of advice my mentor teacher gave me during student teaching was this: Complete the worksheet or activity on your own and time yourself. Take that time and multiply it by 3 to predict about how long it will take the students to complete. Obviously this will vary, especially depending on how much practice students have already had on the topic. But it was a good starting point and I could plan an extension activity just in case we finished early. (Check out this blog post on what you can do if you are left with 5 minutes at the end of the class).

5. Don't panic over SDS
Maybe it was just my college experience, but my professors put the fear of God in us about SDS (MSDS when I was in school) forms. They told us horror stories about how we would lose our jobs if the fire marshall showed up and we didn't have all our forms in a binder ready to go. Now don't get me wrong- these forms are important. But I was so paranoid about having an SDS form for every chemical in my classroom, including hand sanitizer and whiteboard cleaner. 
Long story short: Keep the SDS forms for your chemical inventory, but don't panic over the little stuff like the vinegar you bought at the grocery store. When your chemical orders arrive, don't throw out the SDS forms. Put them in a binder and keep them in the chemical storage room. Many sites such as Flinn Scientific even have an online inventory resource where it will keep track of the chemicals you have on hand and the SDS forms for each chemical. Talk to your colleagues and find a method that works for everyone. 

6. Don't grade everything 
​Oh how I wish someone had told me this sooner! Grading can take over your life if you let it. So stop grading everything (but don't tell this to your students). Different teachers have different methods of grading and saving their sanity, so talk to your colleagues and pick what works for you. Here are a few ideas:

• If you are doing multiple assignments on the same topic, grade the last one. For example, if I'm teaching punnett squares and we are doing 2 or 3 practice assignments, don't put the first one in the gradebook. Students are just starting to learn the material, so it isn't fair to grade them on something that is so new. I use the first assignment as a formative assessment, and make a pile of the students I know will need extra help. 
• It's okay to spot check and give students credit for completion. A great example of this would be a writing prompt or exit ticket where you are just checking for understanding.
• Stop grading (and possibly even assigning) homework. The only time my students have homework is if they didn't finish the classwork. If you are assigning homework, it is highly likely students are copying each other. If you are a fan of homework, make sure what you are assigning is a valuable use of their time, not just busy work.

7. As a new teacher without management experience, use labs as incentives. 
Classroom management is something that can take years to master. And as soon as you think you have it down, you get a new group of students that rock your world (and not in a good way). One way I've found to keep students in line is to use lab experiments as incentives. If classes are well behaved for the week, they get to do a lab on Friday. If they have been off task, noisy, constantly tardy, or disrespectful then they do a book work assignment instead. Once they hear they will miss out on a fun lab experiment that other class periods got to complete, they will quickly toe the line. 

​8. Don't be afraid to admit when you mess up
We are human. We all mess up. Don't be afraid to admit it to your students. One year I was teaching surface area to volume ratio in my cells unit and totally screwed up the math. I knew I was teaching it wrong when I had a really bright student saying "Miss, I don't think this answer is making sense." So I went home, reviewed the lesson, figured out where I was going wrong, and came back the next day ready to re-teach. If you are too prideful to admit your mistakes it is only hurting the students. They will also respect you a lot more when you admit your mistakes and show that you are human too. 

9. Prep for the following day before you go home
Sometimes this one is hard to follow, but it is something I feel is important. I make sure I don't leave for the day unless I am ready to go for the following day. Yes, this includes Fridays too! Have your objective written on the board, copies ready to go, powerpoint or activity reviewed, and answer key ready. Your day will go so much smoother when you come in to an organized classroom instead of waiting in the copy machine line 5 minutes before the bell behind the teacher making 1000 copies. Just don't risk it. 

10. Take an occasional mental health day 
Making sub plans sucks. Often times it feels easier to just come in to work sick than have to get a sub plan ready. But your mental health is super important. If you are tired, worn out, sick, or have other things going on in your life that is affecting your teaching- take a day off. Find a high interest article for the students to read and take a breather. (You can find free articles on newsela.com or check out my free close reading article on botox in my TpT store).
Sometimes I even make the sub assignments extra credit because many students think when there is a sub they have a free day. It is a small bonus for the students that really did work on the assignment. Anyway- you can't be there for your students when you haven't taken care of yourself. Plan one day a quarter that is a day you can rest and recoup. 


Good luck in your new teaching career! Remember- it gets easier. Yes, you will work 70 hours per week that first year. But by year 3 you will have everything down and teach like a pro. And when students write you letters about the impact you made on their life all those hours will be worth it. If you have questions leave them in the comments!

The metric system is so important for students to understand in the sciences. And frankly, it's so much easier to use than the imperial system. One issue I've come across when teaching is that students don't always understand what the units represent, and which unit is appropriate to use for each situation (especially when measuring length). Here is an easy way for students to realize why we need different units of measurement.

I was at Ikea furniture shopping and realized that the disposable rulers they have for free all over the store would be an awesome teaching tool. I pulled the "teacher card" and asked if I could have a bunch for my classroom. The employee was happy to give me a class set of 40. (That was enough for me to group students in 4's across my 5 periods).

For this lesson, each group will need:

• An Ikea 1 meter measuring tape
• A blank strip of paper that is 1 meter long
• Scissors

I started by giving each group one of the blank measuring tapes and asked them to measure the length of the lab table. Most groups came up with answers like "1 1/2 strips of paper", or "1 3/4 strips of paper" long. Next, I asked them to take the same blank measuring tape and measure the length of their school ID. It got harder for them to estimate the length since it was so much smaller. I got answers like "1/10 of the tape." We stopped and discussed that it would be better to have a smaller measuring tape to measure the length of the the ID. I asked them "Would you get a more accurate measurement if you cut the strip of paper in half?"  They said that would still be too big. Quarters? Still too big. This went back and forth until we decided that cutting the strip of paper into 10 equal pieces would be just about right. I handed them scissors and asked them to cut it into 10 equal pieces and then measure the ID again.

The opposite scenario is also true: ask them how many strips of paper it would take to measure the distance between school and their house. Students will quickly realize that the measuring tape they have is much too small. Stop and have a conversation with your students about how it is important to have different units of measurement that are appropriate to the object being measured.

Finally, I switched out the blank strips of paper with the Ikea measuring tape. Have them make observations about the tape like:

• There are 100 numbers listed on the tape
• There are even smaller lines between the numbers

Ask students to measure the length of the lab table now that they have a numbered ruler. They quickly gave me answers like "161." But.... 161 what? They realized we needed some sort of unit.
Next ask them to take the Ikea measuring tape and cut it into 10 equal pieces. It should go much smoother this time now that there are numbers! Then ask them to take the 1/10th size paper (1decimeter, but they don't know this term yet) and ask them to cut it down again into 10 equal pieces (centimeters). Repeat this one more time until you have them cut individual millimeters. (See images below)

Have students discuss when it is appropriate to use each unit of measurement. I had them match objects to each length that are about the same size. For example, the meter strip is about the length of the floor to the door handle. The decimeter strip is about the length of the palm of your hand. The centimeter strip is about the width of your fingernail. The millimeter strip is about the thickness of their school ID card.

Following the activity we took notes on the metric system and units of measurement. I think students remember the units better when they understand that everything is based on powers of 10, and can relate the units to objects. One of my favorite phrases to use in the classroom is "NO NAKED NUMBERS!" It makes them giggle (especially middle schoolers!), but students know to not turn in papers for the rest of the year that have numbers with no units.

I hope this helps you teach the metric system! If you have any other tips and tricks, leave them in the comments! Also, you might want to check out these metric system posters and puzzles in my TpT store:

It's that time again! Last year we had a huge secondary science giveaway where we gave away 4 $100 TpT gift cards and resources to our store. This year it's even better! We are giving away 5 $100 TpT gift cards and a ton of resources! TpT has everything you need to have an awesome low-stress year. We would love to help you pay for those resources! Keep reading to learn how!

There are 2 ways to win:
1. Individual giveaways: Each seller pictured above is giving away individual prizes on their blogs! Check out the bottom of this post for a chance to win $25 worth of resources to my TpT store! There are multiple ways to win, so be sure to check out the rafflecopter below.
2. Group giveaway- We put together one HUGE blog hop giveaway, just for science teachers teaching in grades 6-12: 5 $100 Teachers Pay Teachers gift cards! Each blog post has a secret code word and number. My clue word is 17. right. The number tells you where the word falls in the secret sentence. Collect the words from each blog, write them down in number order, and copy the secret sentence into the joint rafflecopter giveaway. This rafflecopter form is the same on every blog, so you only need to enter once from any one of our blogs!
Giveaway starts Monday at 12 noon EST and ends at midnight on Friday. Best of luck!

Congrats! You've completed the blog loop! CLICK HERE to head back to Mrs. Lau's science site.

The fine print: “Giveaway ends August 11th, 2017 at 11:59 PM EST.  Winners will be selected at random and be notified by email. Winners have 48 hours to confirm their email addresses and respond before a new winner is selected. The product offered for the giveaway is free of charge, no purchase necessary. My opinions are my own and were not influenced by any form of compensation.  Facebook, Twitter, Pinterest, and Instagram are in no way associated with this giveaway.  By providing your information in this form, you are providing your information to me and me alone.  I do not share or sell information and will use any information only for the purpose of contacting the winner.”

Are you tired of hearing the following questions 10 times a day:
"What did we do yesterday?"
"Was there homework?"
"I lost my paper. Can I have a new one?"
"What are we doing today? Anything FUN?"
"Where do I turn this in?

I know I was. Want to save your sanity? I cannot express to you how important it is to establish routines in your classroom. If you train students the first couple of weeks you will be so grateful later. I've established routines so my students know exactly what to do when they enter the classroom, know where to get missing work, and see what we are doing that day. After a couple of weeks if a student comes up to me and says "where is the worksheet from yesterday?" other students almost instantaneously respond so I don't have to deal with it. Here are a couple of the things I have done in my classroom to save my sanity:

1. As soon as students walk into my classroom, they automatically grab whatever worksheet is in the basket by the door. The first week or two I have to stand by the door and remind them, but after that it is just habit for them to reach over and grab the worksheet. It saves me time later so I don't have to pass out the notes, bellwork form, or worksheet for that day. It is also really nice when you have a sub, because it is one less paper they have to worry about.

2. I was so crazy tired of hearing "What are we doing today? Are we going to do anything FUN?" (Really? Science is always fun). Anyway, I had my sister who has a cricut machine cut  out these vinyl letters for my whiteboard. As soon as students come into the classroom they know to get out their bellwork form, write down the daily objective and homework, and have 5 minutes to complete the bellwork on the board. Those 5 minutes are time for me to take attendance, check any urgent emails, and often get lab supplies ready for the next period. In my class students pick up a bellwork form (by the door!) every Monday and turn it in every Friday. So if a student ever says "what are we doing today?" all you have to do is point to the board.

3. If you had students that were absent the day before, do they know where to get their missing assignment? (Hint: The answer should NOT be they have to come bother you to get it). I have a crate in the back of the room for all extra worksheets. There are 5 file folders in the crate, labeled Monday - Friday. If a student was absent on a Tuesday, they know to go to the Tuesday folder and grab whatever papers are in there. Also, if a student wasn't absent but lost an assignment in the depths of their backpack, they know they can find extras in the orange crate.

4. Do your students know where to turn in papers?  Whether you use small trays or file folders like I do, it is nice if students know exactly where to turn in papers. I have another milk crate at the front of the room that has file folders labeled with each period of the day.  I also have a folder in the very back for no-names, so if students have a missing assignment they know they turned in, they can check the no-name folder. (FYI: Walmart carries these milk crates for very cheap during back to school season!)

5. I don't personally use this last tip, but I know teachers that do and really like it. When students ask "what did we do yesterday?" I usually have them check their neighbor's bellwork form and copy down the objective. But another option is to have a calendar posted in the front of your room and jot down what you taught that day. If you laminate the calendar you can write directly on it with expo markers, but if it's not laminated you can use sticky notes instead.

Overall having set routines will get your classroom running smoother. Ever notice that in many IEP's it has routines listed as an accommodation? It is so much easier to start class when students know exactly what to do. Any other tips you want to share? Leave them in the comments!

It's almost time for me to start planning out my first week of school (yes it's crazy, I go back end of July). When I first started teaching, I spent the first week reviewing the syllabus, class rules, and (duh duh duh duhhhhh) spent time reviewing all the lab safety procedures. It just felt like the responsible science teacher thing to do. What I soon realized is the students were just plain bored... or nervous about finding their next class.... or thinking about who has the same lunch period as them... but they were NOT memorizing all those nice lab safety rules I was so carefully explaining. They are also reviewing rules in almost every other class and the chances of them remembering what you said those first few days are slim.  So I decided to throw the "let's front-load all the rules that they will forget anyway" out the window and find more exciting activities for that first week.

I know some of you science teachers reading this are thinking "But I have to review rules the first week, because they need to sign a lab safety contract!" Yes, they do. (And if you don't have one handy, I recommend Flinn Science's contracts which you can download free here.) But is it really necessary the first few days? Here is my main argument on why you are wasting your time: Why are you teaching students to wear goggles and keep scalpels pointed down during dissections if you aren't actually getting to the dissection until April? Or why are you teaching them the proper way to carry and store a microscope when the microscopes don't come out of the cupboard until your cells unit in December? Students will just forget, and you will have to review the rules all over again anyway. Instead, wait until you get to the lab and then review the necessary rules. As far as the contract goes, have students read through it during class or at home with a parent and sign it. If they have any questions feel free to discuss them, but don't waste too much time on it. Here are a few ideas to do instead:

• Do a fun lab that doesn't have hazardous materials. For biology, a great lab to start with is a characteristics of life lab, or have them plant popcorn kernels and see if they grow (even high school students will be amazed by this simple little kernel.... trust me).
• Find a fun activity where you can get to know your students better. Maybe it is a "find someone who" activity, fun icebreakers, or a questionnaire, but I've found that students really appreciate it when you get to know them on a personal level.
• Set up interactive notebooks. If you have a team of teachers that teach the same subject as you, make sure you set them up the same way in case students get the inevitable schedule change.
• If you teach biology, bring in some living organisms (such as pill bugs or meal worms) and have students look at them under the stereoscopes.
• Another fun non-hazardous lab is the firework milk lab. Here is a video showing the lab and you can also find the worksheet in my TpT store.
• Find a memory/perception activity from this website or show this Monkey Business Illusion video. A lot of the time science is based on observations, but how good are we at actually making those observations?
• For younger grades, you might enjoy this freebie demo from my store. All you need is a 2L bottle, water, and tape. Easy!
• If you teach high school, don't spend too much time on the scientific method. They should already know it! Instead, focus more on the nature of science. Here is a great freebie from Utah Root's store about identifying bias and "how to spot bad science."

Long story short: front-loading material too early is a waste of your time. Have fun the first week! Get your students excited about science! (because let's face it, we teach the best content area!)

Whew! You made it to the end of the year! (insert happy dance here). The last week of school all most teachers have on their mind is posting grades and summer vacation. Buutttttt….. I’m here to give you a few tips on things you can do NOW to make your job easier in August. Those few days you have before school starts are precious, and you know most of it will be taken up by PD and meetings. The line at the copy center is huge. You have to make new seating charts and print new IEP's. The list goes on and on. So here are a few end of the year tips that will hopefully make your life easier when it is time to go back to school.

1. Depending on your school, you might have to take everything off the walls and clean out your classroom at the end of the year. Thankfully we don’t have to do this unless we are moving rooms or they are painting the walls, neither of which apply to me this year (thank goodness). However, I still like to go through and throw out or shred papers that I’ve been hanging on to all year. Hard copies of student IEP’s and bubble sheets from district tests are forms that don’t need to be taking up space in my file cabinet anymore. It’s easier to clean out the file cabinet now so you don’t have to worry about it later (especially since the custodial staff will be coming around to pick up trash and recycling over the summer).
2. Are there forms you know you will be using next year? Worksheets you use all year long? For me, I use the same bell work and note taking forms throughout the year. I suggest making a class set of those forms now, because the line at the copier will not be pretty right before school starts. Stash them in a drawer somewhere so you have one less thing to copy before school starts.
3. Do you have some pretty task cards or posters you purchased on TpT and would like them laminated? Back to school time seems to be the time most teachers buy new posters and pick out a new theme for their classroom the following year. Our library will laminate things for us, but it often takes days to weeks to get things back when they are super busy in August. If you have those things ready to go, get them laminated now (the librarian will thank you later).
4. Do you need glassware cleaned or organized? Do you want your mini whiteboards waxed and ready to go for next year? Any cleaning you've been avoiding? Many high school students need community service hours for programs such as National Honor Society or AVID. Instead of breaking your back to get these things done, have students help and offer them community service hours! It’s a win-win.
5. Many schools offer teachers a district web page. When is the last time you updated it? If you are teaching any new classes next year, have any change in contact information, or any new pictures to add, do it now! One less thing to do in August.
6. Lastly, take a quick inventory of what supplies you have left over from the year. Most of us spend quite a bit of money during back-to-school sales on folders, pencils, tape, markers, etc. without realizing that you still have plenty of pencils left over from the previous year. Take pictures of what you have left or add a note in your phone so you have it handy when you head to Target.