Didax Problem Solving Practice Cards, Grade 5 Playa Norte in Cancun Relax and Play on One of Isla Mujeres Most The Best Beaches In Isla Mujeres Garrafon Park The Beaches of Isla Mujeres ~ Isla Mujeres Net Isla Mujeres in Cancun Visit a Vibrant Tropical Island with Beautiful. 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 students abilities as they learn to effectively use a variety of problem solving strategies. This set contains 100 cards20 for each of the five domains. Includes teacher activity guide.