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Modeling Percents SWBAT model percents on a grid and find fraction and percent equivalencies.

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Presentation on theme: "Modeling Percents SWBAT model percents on a grid and find fraction and percent equivalencies."— Presentation transcript:

1 Modeling Percents SWBAT model percents on a grid and find fraction and percent equivalencies.

2 Warm Up On a separate sheet of paper (not in your notebook) -Write a thank you letter to one of the speakers from career day. Include something interesting they told you or something they inspired you to do.

3 Using percents… Most states charge sales tax on items you purchase. Sales tax is a percent of the item’s price. A percent is a ratio of a number to 100. You can remember that percent means “per hundred.” For example, 8% means “8 per hundred,” or “8 out of 100.”

4 Modeling Percent Use a 10-by-10-square grid to model 17%. A 10-by-10 square grid has 100 squares. 17% means “17 out of 100” or. Shade 17 squares out of 100 squares. 17 100 ___

5 Modeling Percents Use a 10-by-10-square grid to model 26%. A 10-by-10 square grid has 100 squares. 26% means “26 out of 100” or. Shade 26 squares out of 100 squares. 26 100 ___

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8 How are ratios (fractions) and percents related?

9 How are can percents become fraction 25% So, 25% = ¼

10 4:5 = what percentage? How do ratios (fractions) become percents?

11 If you got a 3 out of 10 on the test, did you pass the test? How do you know?

12 If you scored a 75% on a test, what was your score? How many did you get right and how many did you get wrong?

13 On your own: Color your Percent Grid You must use between 4 and 6 colors Each small square represents.01 as a decimal Each small square represents 1/100 as a fraction Each small square represents 1% as a percent.


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