Regularly working with manipulatives can help boost second graders’ fluency and confidence in fundamental skills.

Students put all of their addition and subtraction skills together to solve equations. In this lesson, students put all of their addition and subtraction skills together to solve equations. Julia ...

👉 Learn how to simplify rational identities involving addition and subtraction. To simplify rational identities involving ...

Solve word problems using a checklist. Engage in a Number Talk to find "how many." Solve addition and subtraction word problems with a Step-by-Step Visual Model checklist. Understand what the problem ...

The common-core math standards require that students learn the standard algorithm for multi-digit adding and subtracting—you know, the process in which you line the numbers up vertically to add or ...