1. Roller Coaster By by Michael R. Gallis and edited by Wolfgang
2. Cooling/Heating Simulation by Wolfgang Christianh
For teaching of Graphing Skill .
4. Pendulum Model by Wolfgang Christian
Have created a simple simulation on shadow. This can be used to understand how the length of the shadow changes. There are 2 graphs to depict the situation. You can get the students to guess what the graph means