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 ...

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 ...

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 ...

Throughout Tiffany Trevenen’s more than 30-year career in Moffat County schools in Craig, Colo., she has seen students experience the same math struggles again and again. “It was very apparent in ...