Quiz Yourself: Interactive Simulations
These simulations use a step-by-step procedure in which the user inputs an answer for each step, and then checks the “solution box” to see the correct answer. The user then either continues to the next step or resets the simulation by selecting “new problem". Different starting conditions are created when "new problem" is selected. Most steps have a “hint” box that can be selected. Click on the simulation link to download it so it can be used offline with the Wolfram CDF plug-in.