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Lesson Plans and Worksheets for Grade 4

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More Lessons for Grade 4

Common Core For Grade 4

Examples, solutions, and videos to help Grade 4 students learn how use visual models to add two fractions with related units using the denominators 2, 3, 4, 5, 6, 8, 10, and 12.

Common Core Standards: 4.NF.3a, 4.NF.3d, 4.NF.1, 4.MD.2

Lesson 20 Concept Development

Problem 1: Add unit fractions with related denominators using tape diagrams.

1/3 + 1/6 =

Lesson 20 Problem Set

- Use a tape diagram to represent each addend. Decompose one of the tape diagrams to make like units. Then write the complete number sentence. Part (a) is partially completed.

a. 1/4 + 1/8

b. 1/4 + 1/12

c. 2/6 + 1/3

d. 1/2 + 3/8

e. 3/10 + 3/5

f. 2/3 + 2/9 - Estimate to determine if the sum is between 0 and 1 or 1 and 2. Draw a number line to model the addition. Then write a complete number sentence. Part (a) has been completed for you.

a. 1/2 + 1/4

b. 1/2 + 4/10

c. 6/10 + 1/2

d. 2/3 + 3/6

e. 3/4 + 6/8

f. 4/10 + 6/5 - Solve the following addition problem without drawing a model. Show your work.

2/3 + 4/6

Lesson 20 Homework

- Use a tape diagram to represent each addend. Decompose one of the tape diagrams to make like units. Then write the complete number sentence. Part (a) is partially completed.

a. 1/3 + 1/6

b. 1/2 + 1/4

c. 3/4 + 1/8

d. 3/4 + 1/8

e. 1/4 + 5/12

f. 3/5 + 3/10 - Estimate to determine if the sum is between 0 and 1 or 1 and 2. Draw a number line to model the addition. Then write a complete number sentence. Part (a) has been completed for you.

a. 1/3 + 1/6

b. 3/5 + 7/10

c. 5/12 + 1/4

d. 3/4 + 5/8

e. 7/8 + 3/4

f. 1/6 + 5/3 - Solve the following addition problem without drawing a model. Show your work.

5/6 + 1/3

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