Study a physical bike tire and a pump (or equivalent objects chosen by your teacher) in the classroom. Try to observe what happens when you pump air into the tire. As you are doing this, keep the assumptions of KMT in your mind.
Then, familiarize yourselves with the simple computational bike-tire model below. To run it, first click the 
button, and then click the 
button. If you would like to pause the model, you can click the "➤➤ go" button again.
For now, just experiment with the model freely as you experimented with the physical bike tire and pump. Observe what happens when you run the model with different settings. Please do not spend more than 4 minutes on this task.
