Lesson Plan: Adding by Breaking Apart Tens and Ones Mathematics • 1st Grade
This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to add a two-digit number to a two-digit number by breaking the numbers apart before adding ones and then tens.
Objectives
Students will be able to
- use models to decompose 2-digit numbers into tens and ones,
- solve addition problems by breaking the numbers apart and adding the ones and then the tens.
Prerequisites
Students should already be familiar with
- reading and writing two-digit numbers up to 100.
Exclusions
Students will not cover
- three-digit numbers,
- regrouping.
