Students are expected to construct their own methods of addition, subtraction, estimation, multiplication, and division. They have to explain and discuss their methods, with the teacher acting as a facilitator. This even applies in cases where there have been conventional methods, such as the trading of ones for tens in addition, or the splitting of tens into ones for subtraction. Many key ideas are included by implication, rather than by explicit statement. Key ideas are included in the teacher materials, but not included in the student booklets.
Vocabulary development is confined to the teacher materials.
Activities, rather than written materials, are the focus of the program. Outcomes related to measurement should be supplemented. Teacher's Guide and Journal - Order no. Technology Package - Order no. This program stimulates students to use mathematics to solve problems, to communicate their mathematical thinking, and to build a lifelong appreciation of and ability to use mathematics in everyday life.