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.

When some teachers think of differentiating instruction, they imagine having to create a different lesson for every student in the room. “That insanity is not what differentiation is all about,” says ...