
Lesson 1 Cafeteria Actions and Reactions

Lesson 2 Elvira’s Equations

Lesson 3 Solving Equations Literally

Lesson 4 Greater Than?

Lesson 5 May I Have More, Please?

Lesson 6 Taking Sides

Lesson 7 Cafeteria Consumption and Cost

Lesson 8 Eating Up the Lunchroom Budget

Lesson 9 The Arithmetic of Matrices