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Laabri

CW 5.2 Proportion

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Last updated about 5 years ago
15 Nsɛmmisa

CW 5.2 Proportion

Lesson objective:

● use equivalent ratios to determine whether two ratios form a proportion.

● use the Cross Products Property to determine whether two ratios form a proportion.

Key Ideas

Example

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Example

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Example

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Reflect on your progress

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Asemmisa {{asɛmmisaAhyɛnsode}}
1.

Tell whether the ratios form a proportion.

Asemmisa {{asɛmmisaAhyɛnsode}}
2.

Tell whether the ratios form a proportion.

Asemmisa {{asɛmmisaAhyɛnsode}}
3.

Tell whether the ratios form a proportion.

Asemmisa {{asɛmmisaAhyɛnsode}}
4.

Tell whether the ratios form a proportion.

Asemmisa {{asɛmmisaAhyɛnsode}}
5.

Tell whether x and y are proportional

Asemmisa {{asɛmmisaAhyɛnsode}}
6.

Tell whether x and y are proportional

Asemmisa {{asɛmmisaAhyɛnsode}}
7.

Tell whether x and y are proportional

Asemmisa {{asɛmmisaAhyɛnsode}}
8.

Tell whether the two rates form a proportion.

7 inches in 9 hours; 42 inches in 54 hours

Asemmisa {{asɛmmisaAhyɛnsode}}
9.

Tell whether the two rates form a proportion.

12 players from 21 teams; 15 players from 24 teams

Asemmisa {{asɛmmisaAhyɛnsode}}
10.

Tell whether the two rates form a proportion.

440 calories in 4 servings; 300 calories in 3 servings

Asemmisa {{asɛmmisaAhyɛnsode}}
11.

Tell whether the two rates form a proportion.

120 units made in 5 days; 88 units made in 4 days

Asemmisa {{asɛmmisaAhyɛnsode}}
12.

For the ratios to be in proportion, what number should the 88 actually be?

120 units made in 5 days; 88 units made in 4 days

Asemmisa {{asɛmmisaAhyɛnsode}}
13.

Write an example of 2 ratios that are equal. Explain how you know they are equal.

write your fraction with a /

e.g. 2/3 for 2 thirds

Asemmisa {{asɛmmisaAhyɛnsode}}
14.

Give yourself a rating on the first lesson objective

I can use equivalent ratios (simplify them) to determine whether two ratios form a proportion.

Asemmisa {{asɛmmisaAhyɛnsode}}
15.

Give yourself a rating on the second lesson objective

I can use the Cross Products Property to determine whether two ratios form a proportion.