Lesson: Adding Equal Groups Mathematics • 1st Grade

In this lesson, we will learn how to find the total number of objects in an equal groups model by using skip counting or repeated addition.

Lesson Plan

Students will be able to

count how many equal groups there are and how many objects are in each group,
use skip counting or repeated addition to find how many objects there are in total,
represent the equal groups in a number sentence.

Q1:

A monster has five fingers on each of its four hands.

How many fingers does the monster have altogether?

Q2:

Use the model to find the missing number.

Q3:

There are 4 monsters.

Each monster has 2 horns.

How many horns are there?

Each monster has 5 eyes.

How many eyes are there?

Each monster has 10 teeth.

How many teeth are there?