Students go over addition and subtraction with regrouping using different strategies. In this lesson, students go over addition and subtraction with regrouping using different strategies to solve.

Solve real world problems with addition and subtraction within 1,000. Warm up with a Mystery Math Mistake as you add two 2-digit numbers using a decomposition strategy. Use visual models and place ...

Jackson Ryan was CNET's science editor, and a multiple award-winning one at that. Earlier, he'd been a scientist, but he realized he wasn't very happy sitting at a lab bench all day. Science writing, ...

Fractions, often perceived as daunting, become manageable with the right approach. Addition and subtraction require finding a common denominator, while multiplication involves directly multiplying ...

Want to help your first-grader master math? Here are some of the skills your child will be learning in the classroom. Understand place value in one- and two-digit numbers. Understand that in two-digit ...

A set of guidelines adopted by 45 states this year may turn children into "little mathematicians" who don't know how to do actual math. A few weeks ago, I wrote an article for TheAtlantic.com ...

A thorough understanding of addition and subtraction requires knowledge of the inverse relation between these operations. According to Piaget (1952), any inverse relation poses a significant challenge ...

Most people break out in a cold sweat when they see fractions. There's something about those little lines and numbers stacked on top of each other that makes even confident adults feel like they're ...