# Lesson Plan: Dividing a Three-Digit Number by a One-Digit Number: Area Models Mathematics • 4th Grade

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to divide three-digit numbers by one-digit numbers by breaking the numbers apart and using the distributive property.

#### Objectives

Students will be able to

• model the division of a three-digit number by a one-digit number using an area model,
• use the distributive property to partition the dividend and calculate partial quotients,
• choose the most appropriate ways to partition the dividend,
• divide three-digit numbers by one-digit numbers using written methods.

#### Prerequisites

Students should already be familiar with

• multiplication and division facts within the times tables up to ,
• multiplying and dividing by multiples of 10 and 100.

#### Exclusions

Students will not cover

• the long division method,
• dividing by two-digit numbers,
• dividing numbers with more than three digits,
• divisions with remainders.