Exploring 2nd Grade Math Concepts in Lesson 11.3

This lesson focuses on breaking apart numbers to reach the next tens number using models and equations. It begins with an introduction and an I Can statement, followed by examples using apples and books to illustrate the concept. The lesson concludes with a check understanding exercise involving beads, reinforcing the method of decomposing numbers to simplify addition.

What is the main goal of the lesson in Module 11 Lesson 3?

• To study geometric shapes

• To draw models and write equations for breaking apart numbers

• To understand how to multiply large numbers

• To learn about fractions

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

How many red apples does Timothy have?

• 44

• 54

• 17

• 37

Tags

CCSS.1.NBT.A.1

What is the next tens number after adding to 37?

• 40

• 50

• 30

• 60

Tags

CCSS.1.NBT.C.5

After decomposing 17 into 3, how many units are left?

• 14

• 13

• 12

• 15

Tags

CCSS.2.OA.A.1

What is the total number of apples Timothy has?

• 40

• 44

• 54

• 50

Tags

CCSS.1.NBT.A.1

How many books does Sam have?

• 30

• 44

• 28

• 16

Tags

CCSS.1.NBT.A.1

What total number of books do Sam and Kyle have together?

• 48

• 42

• 54

• 44

Tags

CCSS.2.OA.A.1

How many beads does Zoe need to reach the next tens number?

• 4

• 3

• 2

• 1

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

What is the next tens number after adding one to Zoe's red beads?

• 50

• 40

• 30

• 20

Tags

CCSS.1.NBT.C.5

What is the total number of beads Zoe has?

• 51

• 50

• 49

• 52

Tags

CCSS.1.NBT.A.1