1. Your students can take the activity apart, which is the power of Squeak. Click on the Playing button at the left for a introduction to how Squeak works. You must click Escape Browser and your resolution must be set at 1024x768 to view this properly. Go to Squeakland for tutorials and more information on using Squeak. Students should try to take the activity apart and see how it works and then construct their own activity by modifying this one. There are many objects on the page to experiment with. They could start with the animation. Open the Exercise Viewer flap, which can be accessed by clicking on the fourth gray box down on the upper right. Then drag out Script1 and start by changing some of the numbers to see what happens when the animation is run again. Then they could drag one of the tiles out of the script and observe the effect when the animation is run.

Challenges:
• Can they make Norbert and Zot appear to run twice as fast?
• Can they make Norbert and Zot sweat at lower and higher heart rates?

Note: They will have to change all the scripts, except main, the same way to meet these challenges. No matter how bad a mess they make, they can always get back to the original activity by exiting Squeak and starting over. They should explore, try what comes to their mind, and have fun exercising their brain.

2. Your students could make a new exercise animation with their own drawings. They should go to Squeakland for tutorials to show them how to make animations.

3. It is important to foster individual aesthetic growth in your students. The sense of beauty seen in art is equally important in mathematics. Symmetry is part of beauty and it runs throughout art and mathematics. Theorems have a sense of beauty because they represent truth. Beauty gives us a sense of balance and well-being in our lives. The Squeak project was organized on the page to be functional and that often leads to a kind of beauty. But beauty is in the eye of the beholder, so challenge your students to recreate the Squeak project in a way that leaves them with a sense of balance and beauty. With the tools in Squeak, they can make their own drawings. Any of the objects can be moved and resized and their colors can often be changed. Click on any object while holding down the alt key on a PC or the command key on a Mac and a halo of handles will appear. Click on the red handle at the upper left to explore many options for changing the object. Go to Squeakland for tutorials and more information on using Squeak. When they are done go to the NASA CONNECT web site and have them submit their version of the Squeak project and we will post it to bring beauty and balance into the lives of all who choose to open their project.