Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.1

Counting Back Lesson Plan: Operations and Algebraic Thinking

Posted by steviep on

*Click to open and customize your own copy of the Counting Back Lesson Plan. This lesson accompanies the BrainPOP Jr. topic Counting Back. It supports the standard of using addition and subtraction...

Math Skills Lesson Plan: It’s All Fun and Games

Posted by SM Bruner on

In this math skills lesson plan, which is adaptable for grades 3-12, students work collaboratively to research selected math skills. Students then create, play, and assess a math game that is designed...