Each problem set consists of eight pages. The first page is a reproducible teaching problem. On the facing page, there is teacher information, including goals, a list of specific mathematical reasoning processes or skills practiced in the problem set, questions to ask students, and solutions. The next five pages of each set are reproducible problem pages. As an example of the material, the section on proportional reasoning introduces the concept of proportion using lunch baskets.
Pictures show that each lunch basket has one sandwich, three carrots, two cookies, and one apple.
The students are to make three lunch baskets. For each they are asked to explain how they know. The notes indicate that this problem set deals with basic multiplication concepts as well as proportional reasoning. It is suggested that the teacher make available extra paper for students who need to sketch the baskets.