Interpreting Multiplication with Equal Groups

This lesson teaches how to write multiplication expressions by counting equal groups and objects in each group. It explains multiplication as adding equal groups and uses arrays to represent this concept. Real-life examples, such as grocery store items, are used to illustrate multiplication. The lesson provides detailed examples, like counting cookies on plates and windows on houses, to demonstrate how to write multiplication equations.

What is multiplication often described as?

• Dividing equal groups

• Adding different groups

• Adding equal groups

• Subtracting equal groups

Tags

CCSS.3.OA.A.1

How can equal groups be represented visually?

• In a circle

• In a triangle

• In a line

• In an array

Tags

CCSS.2.OA.C.3

What does a 5 by 9 array represent?

• The sum of 5 and 9

• The quotient of 5 divided by 9

• The difference between 5 and 9

• The product of 5 times 9

Tags

CCSS.3.OA.A.1

In a grocery store, how can packs of juice boxes be combined?

• By adding them

• By dividing them

• By multiplying them

• By subtracting them

Tags

CCSS.3.OA.D.9

What are the factors in a multiplication equation?

• The total number of objects

• The number of groups and the number of objects in each group

• The number of rows and columns

• The number of arrays

Tags

CCSS.3.OA.A.1

How many plates of cookies are there in the example?

• 5

• 6

• 4

• 3

Tags

CCSS.2.OA.C.4

How many cookies are on each plate in the example?

• 2

• 4

• 5

• 3

Tags

CCSS.2.OA.C.4

What is the total number of cookies in the example?

• 25

• 20

• 15

• 10

Tags

CCSS.1.NBT.A.1

How many houses are there in the example with windows?

• 5

• 6

• 7

• 8

Tags

CCSS.1.NBT.A.1

How many windows are on each house in the example?

• 3

• 4

• 5

• 6

Tags

CCSS.2.OA.C.4