| Activity Name | Activity Description |
|---|---|
| Clock Arithmetic | Students use the applet to manually adjust the number of 'hours' that appear on a graphical clock face (representing a number system base) and then input a number of hours for the clock to count. The applet supplies a 'time' as a modular arithmetic conversion for the input number in the given base. |
| Caesar Cipher | Students input parameters to create coded messages using an affine cipher. Students can also generate the code by hand using base 26 modular arithmetic. |