Use Base-Ten diagrams and standard, expanded, and word forms to represent numbers. Warm up with a Mystery Math Mistake as you add two 2-digit numbers using a decomposition strategy. Find Which One ...

Thanks for joining me today. My name's Mrs. Gray, and I can't wait to do math with you, Today, we're gonna be doing a word problem with our friend Professor Barble. We're also going to be doing snap ...

The Markov numbers reveal the secrets of irrational numbers and the patterns of the Fibonacci sequence. But there’s one question about them that has resisted proof for over a century. Most people are ...

On a recent morning in South Seattle, Kristin Alfonzo challenged her preschoolers to make the number 7 using beads strung across two rows of pipe cleaners. One 5-year-old boy slid four beads across ...

This Pi Day, as you’re enjoying your slice of pie, explore a bigger slice of mathematics. Most March 14 celebrations are obsessed with the number pi. If you think “obsessed” is too strong, take a look ...

As children grow, their cognitive skills develop, and with that, their capacity to comprehend and apply mathematical concepts evolves. In this article, we’ll guide you through the key math skills kids ...