Non-routine math problems for grades K-12 designed to be used schoolwide to promote a problem-solving theme.

Why problem solving? If we want our students to be problem solvers and mathematically powerful, we must model perseverance and challenge students with non-routine problems.

A practitioner’s guide to using the Problems of the Month school-wide

Videos of the mathematical practices in classrooms. Tasks aligned to the Common Core you can use right away. Mentors to support the mathematical practices.

Our featured teachers engage their students with multiple mathematical practices simultaneously.

See video examples of the standards for mathematical practice at different grade levels.

Grade-level tasks, student work samples, & rich discussion of student understandings, misconceptions, & implications for instruction.

Watch a re-engagement lesson on proportions and ratios, based on the Candies task.

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