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 ...

“There are many different pathways into mathematics,” said Jordan Ellenberg, a mathematician at the University of Wisconsin, Madison. “There is the stereotype that interest in math displays itself ...

Prime Number Patterns Prime numbers, divisible only by themselves and 1, have long fascinated mathematicians. Discovering new ...