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Fractions, Decimals, Percents

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Presentation on theme: "Fractions, Decimals, Percents"— Presentation transcript:

1 Fractions, Decimals, Percents

2 Why are Fractions hard for kids?
Pg. 206 in Teaching Student Centered Mathematics Pg. 341 in book

3 Fraction Models Area Models Length/ Number Lines Sets
Table 15.1 on pg. 342

4 Area Models Playground Fractions on pg. 343

5 Length Models Fraction Strips

6 Set Models

7 Fraction Size is Relative
See Pg 347

8 Illustrate the following fractions
5 brownies shared with 2 kids 10 brownies shared with 4 kids 4 brownies shared with 8 kids 2 brownies shared with 4 kids 5 brownies shared with 3 kids 2 brownies shared with 3 kids What does your illustration look like for each? How can this help kids understand fractions as equal shares?

9 Problem-Based Approach to Operations of Fractions
Use contextual tasks Explore Estimate Address common misconceptions Pg 373

10 Solve the following problem using models and explaining your answer
What Makes 1/5?  Jenn subtracted 2 fractions with different denominators and came up with a difference of 1/5. What could the 2 fractions have been? Explain your work using pictures, numbers, and/or words.

11 Solve the following problem using models and explaining your answer
Servings of food: How many servings of ½ in 3 containers? How many servings of ¼ in 5 containers? How many servings of 1/5 in 8 containers? How many servings of 1/8 in 3¾ containers?

12 Decimals Base Ten Blocks Modeling Estimating

13 Sample Problems Pg 417


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