Thursday, June 14, 2012

Introduction to Multiplication

My summer class is already half over and we've just begun to think about teaching multiplication and division. Here's the introductory activity I gave them to think about repeated addition, making arrays, and writing number sentences.

This activity meets the following Common Core Standards for Mathematics.
  • 2.OA.4 - Work with equal groups of objects to gain foundations for multiplication. Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns; write an equation to express the total as a sum of equal addends.
  • 3.OA.1 - Represent and solve problems involving multiplication and division. Interpret products of whole numbers, e.g., interpret 5 × 7 as the total number of objects in 5 groups of 7 objects each. For example, describe a context in which a total number of objects can be expressed as 5 × 7.
Download Building Sets.


  1. This comment has been removed by the author.

  2. This has really helped some of my students understand multiplication! Thanks for sharing! The above comment needed to be removed because it had a grammatical error. Sorry.