Chapter 3: Lessons and Activities
| Activity Name | Activity Description |
|---|---|
| Clock Arithmetic | Students learn about modular arithmetic operations through working with various types of clocks. Parameters: Number of hours on the clock. |
| Caesar Cipher | Students practice simple arithmetic skills by encoding and decoding messages using an affine cipher. |
| Caesar Cipher II | Students practice simple arithmetic skills by encoding and decoding messages to determine the form for an affine cipher. |
| Caesar Cipher III | Students practice their reasoning and arithmetic skills by decoding messages to determine the form for an affine cipher. |
| Shape Explorer | Students are shown shapes on a grid and asked to calculate areas and perimeters of the shapes. |
| Triangle Explorer | Students learn about areas of triangles and about the Cartesian coordinate system through experimenting with triangles drawn on a grid. |
| Lesson Name | Lesson Description |
|---|---|
| Clock Arithmetic and Cryptography | Introduces students to modular (clock) arithmetic and how it can be used to encode messages using simple shift, multiple and affine ciphers. |
| Length, Perimeter and Area | Introduce students to length, perimeter and area. |
