Keep Calm and Teach Math beach scene with turquoise chair, math books and sunglasses

Inspiring Middle School Math Teachers. Engaging Students.

Classroom-tested teaching ideas, engaging math activities, and low-prep resources that make planning easier and learning more fun.

Free Math Resources

Grab a classroom-ready math activity and join the Island Time Math email list for more teaching ideas, resources, and time-saving tips.

Shop Math Resources

Explore engaging, low-prep activities designed to make middle school math practice easier to plan and more fun for students.

Thursday, September 19, 2013

Integer Addition App-tivity

Integer addition activity using virtual positive and negative chips

In the past, I've taught integer addition with the 2-sided red and yellow chips, which worked well. The only problem with the chips was that they always ended up all over the floor!

Then I discovered the Interactive Integers app — so cool!

Students model the problem with the infinite supply of red and yellow chips. Then they make zero pairs by dragging a red and yellow chip together and "poof!" they disappear! The kids love it!

When they cannot make any more zero pairs, they have their final answer. After they've practiced with this a few times, I ask them to predict the sign of the final answer before making the zero pairs, and finally I ask them to predict what the final answer will be, not just the sign.

Teacher Tip: Even without chips or the app, students can draw + and - signs on paper and cross out zero pairs to find the final solution.

Moving to the Number Line

Next, we use the same app in the number line mode. Students first set the starting point—the first number in the problem—by tapping the + or - sign to move right or left. Once it is set, it turns yellow.

Then they use the + sign to move to the right if the second number is positive, or the - sign to move to the left if the second number is negative.

After we are done with this portion of the app, I explain that they can use the number lines on their desks to do the same thing, or draw their own number line if one isn't available.

Most students preferred the number line method to the chips, but now at least they have two strategies to use for integer addition.

Wednesday, September 11, 2013

"All About My Partner" App-tivity


One of my usual first few days activities is to have the students complete an interest inventory, which, to say the least, is 
not very interesting to them. This year since we have iPads, I decided to step it up a little and make it more engaging for the students. The app-tivity I created for them is called "All About My Partner". Besides getting them to use technology, I also wanted to incorporate some communication skills, since the common core is all about communicating about math. 

So, day 1, I showed the students an app called Explain Everything 
(love it!!). I had them try out each tool one by one in order to get familiar with this app, since we will be using it quite a bit this year. I heard many students comment about how the app was really cool! By the end of our first day, I felt everyone was comfortable enough with it to start actually using it the second day.


Day 2, I handed out their interview sheet with the questions I wanted them to ask their partner. When they had completed the interviews of each other, I gave them each an iPad to begin creating. They were to answer two questions per slide in their presentations, for a total of five slides. They had learned on the first day how to bring a photo from the camera roll into their presentation, so I wanted to see a photo to go along with each question (they could also simply draw with the pencil tool if they preferred). Once they had their five slides done, they recorded their own voices introducing their partner to the rest of the class and emailed their mp4 movie to me.

The students were highly engaged in this activity! The final products came out great, and the app-tivity accomplished what I had set out to do - learn how to use Explain Everything and communicate with each other.

Monday, September 9, 2013

My Second Year with iPads

Dr. Ruben Puentedura's SAMR Model
This is the start of my second year using iPads in my class. Last year, our school only had one cart of 30 iPads. Now I'm excited to say that we have two more carts of 30 iPads!! 

Last year, it was my year to experiment and merely work on integrating the new technology into my lessons. This year, my goal will be to move toward innovation. Learning about the SAMR model towards the end of my last school year has inspired this goal.

Keep checking back to see how it's going!