# Lesson Plan: Multiplying a Three-Digit Number by a One-Digit Number: Column Method Mathematics • 4th Grade

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to use the standard algorithm to multiply a three-digit number by a one-digit number.

#### Objectives

Students will be able to

- use the column method of multiplication to multiply a three-digit number by a one-digit number,
- correctly record any regrouping,
- model a calculation and describe how each step is represented in the written solution,
- find missing numbers in partially complete solutions,
- identify errors in solutions.

#### Prerequisites

Students should already be familiar with

- the multiplication tables up to ,
- multiplying a two-digit number by a one-digit number by using the column method with and without regrouping.

#### Exclusions

Students will not cover

- mental multiplication strategies.