A termite starts at the center of the face of any one of the edge cubes and bores a path that takes it through every cube ...

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.

Try your hand at these tricky visual puzzles and give your brain a boost!