Van de Walle asks his readers to experience the doing of mathematics. Four problem opportunities appear on pages 15-19 of Elementary and Middle School Mathematics.
1. Describe a learning experience as you work through one of these problems.
2. what you think about not having an answer book (see p. 19) to check your answer.
3. Reflect on the richness/depth of the mathematics you experienced in this exercise, then write your own definition of “doing mathematics.”