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Unit 6, Lesson 4

Represent equal groups with tape diagrams, and relate to repeated addition

EngageNY 60 min(s)

In this lesson, students understand that numbers other than 1, 10, and 100 can serve as units, and students represent the total of a given number of units with tape diagrams or using repeated addition, e.g., 2 + 2 + 2 + 2 = 8.

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Other lessons from Unit 6 in Grade 2 by EngageNY

Previous Lesson

Unit 6, Lesson 3

Use math drawings to represent equal groups, and relate to repeated addition

60 min(s)

Next Lesson

Unit 6, Lesson 5

Compose arrays from rows and columns, and count to find the total using objects

60 min(s)

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1 Content Standard is aligned with this lesson

2.OA.C.4

Major StandardsSupporting StandardsAdditional Standards

Standard 2.OA.C.4

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.

Part of Supporting Cluster 2.OA.C

1 Math Practice Standard is aligned with this lesson

Standard MP.4

Model with mathematics.

Prerequisites for 2.OA.C.4

1st Grade

1.OA.D.7

Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false. For example, which of the following equations are true and which are false? 6 = 6, 7 = 8 - 1, 5 + 2 = 2 + 5, 4 + 1 = 5 + 2.

Upcoming Standards for 2.OA.C.4

3rd Grade

3.OA.A.1

Interpret products of whole numbers, e.g., interpret 5 x 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 x 7.

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