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 ...

Students in Melissa Williams' kindergarten class at the Westminster School in Atlanta, Georgia, practice connecting quantities to written numbers — a key part of number sense. Credit: Holly Korbey for ...

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 ...

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