Saturday, May 26, 2018

Chemical Changes with Glo Sticks


Image result for picture perfect science
This is one of the easiest, yet best, wow-moments for my class. When we're studying chemical changes, we talk about how to identify whether a chemical change has taken place. And, while I love using the Pancakes lab from Picture-Perfect Science, this little demonstration is great for introducing the topic (especially after they've read the text in this book that discuss light emission as being one way to identify a chemical change).


Grab yourself a package of glo-sticks from Dollar Tree (I tossed a couple of packages in there to last a few years) and pick your favorite color. The science behind the glo-sticks is very simple: you have a glass tube inside of a plastic tube. The glass tube holds a colored chemical and the plastic tube holds another chemical. When you bend the glo-stick, the snap you hear is the glass breaking. The two chemicals mix and - viola! - light is produced.

So, get your materials ready: your glo-stick, foil (it enhances the light!); scissors; and a paper towel.


Safety Note: I don't recommend getting the chemicals on your hands. But, honestly, I have. Nothing happened. I was, however, quick to make sure I washed my hands. I do this lab as a demonstration in my class just in case a student were to have a reaction to the chemicals. Read up on Steve Spangler's discussion on glow-sticks. He also includes the exact chemicals that are contained in most glow-sticks. He cautions against opening them up to get at the chemicals...hence why I do this as a demonstration in my class. That, and you're breaking glass... having students do that would just be plain irresponsible.

Make sure you zoom your document camera in so the kids can see the small, transparent/translucent puddles clearly.

Being careful to not cut the glass tube, snip the ends off the plastic tube and let the clear liquid drain onto the foil into a puddle.

Let the glass tube slide out and dry it on the paper towel. Then, break it in half. The liquid tends to remain in the tube until you break the ends off. Let the colored liquid in both of those drain out into one puddle. (Blue is usually clear instead of colored.)

Turn off the lights.

Using the left over tubes or a clean toothpick, start pushing the liquids towards each other. Just when they meet, they'll glow. You can then push the puddles together and play with it.



Okay, I enjoy this part more than the kids. After all, they're not getting to touch this lab!! Have fun!!!


Sunday, May 20, 2018

Ecosystem Murals




At the end of the year, as my students are going a little stir-crazy after weeks and weeks of writing essays (pretty much the whole year, to be honest), I look forward to addressing benchmarks that aren't on our state test - and there are a good number of them! So, we wrap up the year with a narrative essay project, some cursive writing, and then tackle the technology benchmark combined with the speech/presentation benchmark. I teach both Language Arts & Science - and since our Life Science unit is during the spring - I combine the two subjects and have the students research animals, create & present Power Points, and then we finish the unit by creating a mural of an ecosystem. If you're lucky enough to have AIMS Exploring Environments, then this project is easy to do.

Step One: Decide which environment you want to focus on. If you're doing the mural at the end, all students need to do the same environment. We live in FL and are supposed to be studying local ecosystems, so I chose the beach again this year. (I really love doing the Polar regions, but they aren't as easy to tie into my own curriculum.)

Step Two: Have the students choose animals. I highly recommend getting the AIMS book (I saw it for under $10 on Amazon.) and having students choose animals from there. It will make your life so much easier. Also, I let my students choose whether they wanted to work in pairs or on their own.

Step Three: Decide on what you want to have students put in their Power Points. I based ours on what was in the AIMS book already and required 3 facts for each content slide.

  • Slide 1: Title Slide
  • Slide 2: Habitat
  • Slide 3: Diet
  • Slide 4: Predators
  • Slide 5: Characteristics
For the presentation, I also required certain digital elements (a change to the theme, animation/slide transitions, sound, and a picture).

Step 4: The AIMS book has a chart for each ecosystem with the above information. I wasn't using this as a research project (due to time), so I cut out each row of the chart and gave them to each group as a base for their Power Points. There's a second chart in the AIMS book with a picture of the animal and a paragraph with much of the same information, but sometimes there's new facts too. I also cut those out for each group. Then, I modeled how to put together a presentation from start to finish. This is a great time for you to pick an animal from another ecosystem and use the same charts to show students that it doesn't need to be that complicated. Finally, turn them loose and let them design their presentations. I'm always amazed at how well they do on their own!

Step 5: Present & get those grades. I required 3 grades for this project.
  • Story Board: I had students create a minimum of 5 index cards to match what their slides would show. They had to have their 3 facts per slide before I would allow them to move onto the computers.
  • Power Point: I graded each slide for content and then the overall presentation for digital elements. I also deducted points for spelling if there were errors.
  • Presentation: This is the scariest part of the grade for the kids, but I made it as non-threatening as possible. Everyone started with a base of 60 points for getting up in front of the class and earned points for the following:
    • +10 Points for speaking
    • +10 Points for speaking at a volume that could be heard
    • +10 Points for looking at the audience
    • +10 Points for adding extra comments (not just reading the slides)
Step 6: Moving on to the fun stuff! Each group used the doc cam to trace their animal onto white butcher paper. We did this over several days. When not tracing, students used that time to do some extra grammar & cursive grades for me or catch up on their reading for their reading teacher. I also had them create a 4x6 index card with all of their Power Point information on it to display near their animal on the final mural.

Step 7: Painting Day - For just one day, we broke out all the paints and let the kids go to town. Since I teach multiple classes, I had to devise a method of storing 50+ large half-wet masterpieces. I had the kids lay them out on the floor and turned a fan on them on high. They dried quickly and most were able to be stacked by the time the next class needed that space.

Step 8: Painting Day 2 - For this day we only brought out the black paint so the kids could outline their animals to make them POP out on the mural. Now the kids are starting to see them come together!

Step 9: Put it all together. On this day, we cut out the animals, put a bunch of wet glue on them, and stuck them to the butcher paper background I had already created in the hallway outside my room. After several years of doing this, I've learned that the larger animals need to go up first (or at least make a plan for them). Since some of my dolphins & hammer head sharks were in my last class, I made sure I directed students to keep their animals - especially the smaller ones - closer to each other.



Tuesday, May 15, 2018

Test Prep Game Centers - Mostly Free


Tic-Tac-Toe {FREEBIE}     BOOM! A Game to Play with Task Cards: FREE!   
Fall/Autumn {Game Boards}        Jenga Game, Board Games


I love using centers in my math class. It gives me time to meet with a small group of students to focus on what they need at their level. The rest of the class can use that time to practice skills they need to work on. After teaching math for several years - and getting a handle on what the kids REALLY need to practice vs what they pick up rather quickly - I started creating task cards by the boatload. Many teachers use my task cards to play Scoot, but a whole-class activity doesn't work for small group time.

Enter Game Time. What's really nice about the games above is that once the kids learn the games, you can switch out task cards and change up the skill they're practicing - without having to reteach the game. Plus, it makes the kids feel like they're doing something different each center rotation - when in actuality, they're just doing task cards. And set up...don't even get me started about how EASY it is to set up for these games! I keep a 6x9 manilla envelope labeled with each game, rules on the back for reference, and drop a new set of task cards in each week. Or, rotate the sets to a new game for more practice on that skill.

A few things...

Tic-Tac-Toe (FREE): Print out a couple of boards for partners to use and then leave them in the center. Change out the tokens every month to go with the season.

Boom (FREE): Not mine, but a favorite of my students. You'll need an oatmeal container (large, cylinder kind) and then you're good to go. My kids love this game.

Jenga (FREE): You need a Jenga set you don't mind writing on - check Goodwill. Number each block. Play like regular Jenga, but in order to pull the block, kids have to answer the question on the corresponding task card.

Game Boards (Not Free): I have a bunch of game boards in my store that can be used throughout the year to go with the different seasons. Each set comes with 6 different board layouts so things can look a little different when students visit this center. But, with the rules being the same, kids won't be up at your desk asking questions about how to play.