Some say the reason most manhole covers are round is that a circle cannot fall through a smaller circular hole. Which of these other two-dimensional shapes cannot fall through a hole that is the same ...

1. Fast and Slow Piles. This works well as a starting or closing activity. Students sort math fact cards into fast and slow piles. This visual way of tracking facts highlights which facts come ...

Implementing seasonal math strategies in the fall is a simple yet powerful way to build early mathematical understanding.

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A math puzzle is a type of brain teaser that tests the reader's critical thinking and problem-solving skills by challenging ...