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Revamped cover! This set of 3 challenges can be used as whole class explorations, as small group challenges, or as independent work for those students needed something more. In my classroom, these are whole-class explorations where students work in teams, share ideas, guess and check their ideas—and then present their solutions. The problem solving and math applications are high level and meaningful. See what you think! 3 challenges are included, each taking several class periods.