Array City
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Subject Area: Mathematics (B.E.S.T.) | Grade Level: 3
Lesson Length: 15 minutes or less
Keywords/Tags: multiplication, arrays, equal groups, columns, rows
Lesson Description: In this lesson, students will explore multiplication through hands-on investigations and authentic problems. Students will explore patterns and properties and discover relationships between multiplication facts. Students will also represent and solve multiplication problems through the context of picture and bar graphs. Students will create statistical investigative questions, collect, analyze, and interpret numerical and categorical data as an entry point for learning about equal-size groups and multiplication.

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Video : Multiplication using arrays
Instructions: Please watch the following video as many times as needed before starting to go through other lesson pages. Understanding the content of the video is very important since the lesson activities will be all about this video content.
Description: A way to show multiplication in rows and columns.
Quiz : Multiplication using arrays
Instructions: Please complete this quiz by choosing the correct answer for each question. You can take this quiz as many times needed.
Question #1
An array is a way to show multiplication using rows and columns. 
Question #2

If you have 2 rows of basketballs in 5 columns. What number are you skip counting by? 

Question #3

How many balloons would you have if you had 3 groups of 5?

Question #4

Your mom is baking cookies. She has 2 groups of 8 cookies on the pan. How many total number of cookies is your mom baking? 

Question #5
I have 2 groups of 5 candy hearts. To find out the total number of hearts I can say 2 + 5 = 7. I have a total of 7 hearts, Is this correct? 
Question #6
Type a multiplication sentence for 5 groups of 10. 
Question #7
Type a multiplication sentence for 6 groups of 2.
Question #8

Mrs. Smith planted 4 rows of flowers. Each row had 8 flowers. Use your scratch piece of paper to create an array and find the total number of flowers Mrs. Smith planted. 

Question #9
Create and solve a multiplication problem for 4 rows of stickers in 2 columns. 
Question #10
The number of groups in an array is equal to the number of rows and how many objects you have in each row gives you the number of columns? 
Resources : Additional Resources
Instructions: Please see additional external resources below. Feel free visit each link to learn more about this lesson.
BrainpopJr - What is an array?

Khan Academy - Multiplication with arrays

Splash Learn - Multiplication with arrays - Math games