Built for rigor and carefully aligned to the standards, these activity cards build student confidence in problem solving as they progress from strategies and procedures to a deep understanding of math concepts. Featuring classroom-tested problems, each card also suggests a specific problem solving strategy to be used such as drawing a picture, using a model or solving an equation. These cards will improve student's abilities as they learn to effectively use a variety of problem-solving strategies. This set contains 100 cards—20 for each of the five domains. Includes teacher activity guide.