NCTM has identified three essential math curriculum focal points plus connections to those focal points for each grade level. These books offer activities that support one of the key focal points, Number & Operations, and its connections for grades 2-3. A variety of activities including puzzles, games, step-by-step activities, and more keep students' interest high as they develop problem-solving, reasoning, and critical thinking skills as well as proficiency in computation skills. 96 pages.