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.


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.


Students should already be familiar with

  • the multiplication tables up to 10×10,
  • multiplying a two-digit number by a one-digit number by using the column method with and without regrouping.


Students will not cover

  • mental multiplication strategies.

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