Lesson: Adding One-Digit Numbers by Making Ten Mathematics • 1st Grade

In this lesson, we will learn how to add two one-digit numbers by first making ten.

Lesson Plan

Students will be able to

break apart numbers, such as decomposing 5 into 3 and 2,
recognize situations in which making a ten is a reasonable strategy for solving addition problems,
use models to solve addition problems using the strategy of making a ten,
solve addition problems using the strategy of making a ten without using models.

Q1:

Find an expression that has the same answer as .

Q2:

Fill in the blank: .

Q3:

One way to make addition easier is to use addition facts that we already know.

Let us try to find by first making 10.