Multiplication

Overview

Your student will be learning:

basic facts and place value patterns can be used to find products when one factor is 10 or 100.
strategies to multiply up to a four-digit number by a one-digit number and a two-digit number by a two-digit number. Strategies may include mental math, partial products, and the commutative, associative, and distributive properties.

Example of partial product: 43 x 25

some problems can be solved by first solving a simpler problem to help solve the original problem.

Videos
- Ways to Represent Multiplication. Khan Academy illustrates the different ways to write a multiplication problem. Example: 7x5, (7)(5), 7∙5
- Multiplication: An Area Model. This Khan Academy video demonstrates how to multiply a 2-digit number by a 2-digit number using an area model and how that relates to the standard algorithm.
- Use Area Models for Multiplication. LearnZillion demonstrates how to multiply using area models and partial products.
Free Apps

Help the monster make a target sum or product.

This is a multiplayer game that challenges 2 players with multiplication and division facts.

This app encourages students to master 9, 12 and 19 times table.

Websites
- Clear It Multiplication. This game from ABCYa.com helps students practice basic facts.
- Canoe Penguins. This Arcademic Builders game practices 2-digit by 1-digit multiplication with a penguin race.
Books
- The Best of Times: Math Strategies that Multiply by Greg Tang. The author takes on the times tables, teaching kids innovative ways to multiply numbers and derive answers without memorization.
- Anno’s Mysterious Multiplying Jar by Masaichiro and Mitsumasa Anno. The author introduces the concept of factors and multiplication.

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