These low-floor, high-ceiling problems support differentiation, challenging all students by encouraging flexible thinking and allowing for multiple solution paths.

Four simple strategies—beginning with an image, previewing vocabulary, omitting the numbers, and offering number sets—can have a big impact on learning.

Warren Central Intermediate math teacher Dr. Denise Moore, a 16-year educator and Educator of the Year finalist, uses data-driven, hands-on lessons to meet each student’s needs.

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Editor's Note: APYs listed in this article are up-to-date as of the time of publication. They may fluctuate as the Fed rate changes. CNBC Select will update as changes are made public. With a ...