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Unit 5 Lesson 3 Fact Families Copyright © 2010 Kelly Mott.

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Presentation on theme: "Unit 5 Lesson 3 Fact Families Copyright © 2010 Kelly Mott."— Presentation transcript:

1 Unit 5 Lesson 3 Fact Families Copyright © 2010 Kelly Mott

2 Unit 5 Lesson 3 Fact Families Copyright © 2010 Kelly Mott

3 Part 1: Vocabulary Review Copyright © 2010 Kelly Mott

4 6 ÷ 2 = 3 The _____________________is the number that is divided. It represents the total number of items present. Division Vocabulary Copyright © 2010 Kelly Mott

5 6 ÷ 2 = 3 Division Vocabulary Copyright © 2010 Kelly Mott The _____________________is the number you divide by.

6 6 ÷ 2 = 3 Division Vocabulary Copyright © 2010 Kelly Mott The _____________________is the answer in division

7 6 ÷ 2 = 3 Dividend Quotient Divisor LABEL THE PARTS: DRAW A LINE Copyright © 2010 Kelly Mott

8 2 6 The _____________________is the number that is divided. It represents the total number of items present. 3 Division Vocabulary Copyright © 2010 Kelly Mott

9 2 6 3 Division Vocabulary Copyright © 2010 Kelly Mott The _____________________is the number you divide by.

10 2 6 3 Division Vocabulary Copyright © 2010 Kelly Mott The _____________________is the answer in division.

11 2 6 Quotient Divisor Dividend 3 Copyright © 2010 Kelly Mott LABEL THE PARTS: DRAW A LINE

12 Part 2: New Vocabulary Copyright © 2010 Kelly Mott

13 A fact family is a group of numbers that are related. A fact family has ______ numbers. A fact family has ______ different math problems. Copyright © 2010 Kelly Mott Vocabulary

14 Fact Families: Part 1 Copyright © 2010 Kelly Mott

15 4 2 8 4 x 2 = 8 2 x 4 = 8 8 ÷ 2 = 4 8 ÷ 4 = 2 Fact Families: Example 1 Copyright © 2010 Kelly Mott

16 3 4 12 3 x 4 = 12 4 x 3 = 12 12 ÷ 4 = 3 12 ÷ 3 = 4 Fact Families: Example 2 Copyright © 2010 Kelly Mott

17 5 2 10 __ x __ = __ __ ÷ __ = __ Fact Families: Practice 1 Copyright © 2010 Kelly Mott

18 3 2 6 __ x __ = __ __ ÷ __ = __ Fact Families: Practice 1 Copyright © 2010 Kelly Mott

19 Fact Families: Part 2 Copyright © 2010 Kelly Mott

20 Unit 5 Lesson 3: Fact Families 3 x 2 = __ __ x __ = __ __ ÷ __ = __ Steps: 1.Solve the problem. 2.Switch the factors. 3.Show the inverse division problem for each. Fact Families Example Copyright © 2010 Kelly Mott

21 Unit 5 Lesson 3: Fact Families 4 x 2 = __ __ x __ = __ __ ÷ __ = __ Steps: 1.Solve the problem. 2.Switch the factors. 3.Show the inverse division problem for each. Fact Families Practice 1 Copyright © 2010 Kelly Mott

22 Unit 5 Lesson 3: Fact Families 3 x 4 = __ __ x __ = __ __ ÷ __ = __ Steps: 1.Solve the problem. 2.Switch the factors. 3.Show the inverse division problem for each. Fact Families Practice 2 Copyright © 2010 Kelly Mott

23 Unit 5 Lesson 3: Fact Families 4 x 5 = __ __ x __ = __ __ ÷ __ = __ Steps: 1.Solve the problem. 2.Switch the factors. 3.Show the inverse division problem for each. Fact Families Practice 3 Copyright © 2010 Kelly Mott

24 Unit 5 Lesson 3: Fact Families 5 x 6 = __ __ x __ = __ __ ÷ __ = __ Steps: 1.Solve the problem. 2.Switch the factors. 3.Show the inverse division problem for each. Fact Families Practice 4 Copyright © 2010 Kelly Mott

25 Unit 5 Lesson 3: Fact Families 6 x 3 = __ __ x __ = __ __ ÷ __ = __ Steps: 1.Solve the problem. 2.Switch the factors. 3.Show the inverse division problem for each. Fact Families Practice 5 Copyright © 2010 Kelly Mott

26 Fact Families: Part 3 Copyright © 2010 Kelly Mott

27 Unit 5 Lesson 3: Fact Families 16 ÷ 2 = __ __ ÷ __ = __ __ x __ = __ Steps: 1.Solve the problem. 2.Switch divisor and the quotient for the 2nd fact. 3.Then show each related multiplication fact. Fact Families Example Copyright © 2010 Kelly Mott

28 Unit 5 Lesson 3: Fact Families 12 ÷ 3 = __ __ ÷ __ = __ __ x __ = __ Steps: 1.Solve the problem. 2.Switch divisor and the quotient for the 2nd fact. 3.Then show each related multiplication fact. Fact Families Practice 1 Copyright © 2010 Kelly Mott

29 Unit 5 Lesson 3: Fact Families 18 ÷ 3 = __ __ ÷ __ = __ __ x __ = __ Steps: 1.Solve the problem. 2.Switch divisor and the quotient for the 2nd fact. 3.Then show each related multiplication fact. Fact Families Practice 2 Copyright © 2010 Kelly Mott

30 Unit 5 Lesson 3: Fact Families 20 ÷ 4 = __ __ ÷ __ = __ __ x __ = __ Steps: 1.Solve the problem. 2.Switch divisor and the quotient for the 2nd fact. 3.Then show each related multiplication fact. Fact Families Practice 3 Copyright © 2010 Kelly Mott

31 Unit 5 Lesson 3: Fact Families 30 ÷ 5 = __ __ ÷ __ = __ __ x __ = __ Steps: 1.Solve the problem. 2.Switch divisor and the quotient for the 2nd fact. 3.Then show each related multiplication fact. Fact Families Practice 4 Copyright © 2010 Kelly Mott

32 Unit 5 Lesson 3: Fact Families 45 ÷ 5 = __ __ ÷ __ = __ __ x __ = __ Steps: 1.Solve the problem. 2.Switch divisor and the quotient for the 2nd fact. 3.Then show each related multiplication fact. Fact Families Practice 5 Copyright © 2010 Kelly Mott

33 How did you do? Copyright © 2010 Kelly Mott

34 HOMEWORK Math Steps Pages: 119-120 Teacher Worksheets: Re-teach Page: 91 Copyright © 2010 Kelly Mott


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