Skill Maintenance Page 88. Making Sense of Proportional Reasoning Sometimes we need to simplify ratios Simplifying ratios helps us see the multiplication.

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Presentation transcript:

Skill Maintenance Page 88

Making Sense of Proportional Reasoning Sometimes we need to simplify ratios Simplifying ratios helps us see the multiplication pattern The multiplication pattern tells us the ratios are a proportion. Pictures can deceive us when looking for proportions as well.

Where do we use proportional thinking? We use proportional thinking in probability –The chance of flipping heads on a coin is 1 out of 2 –The chance of rolling a 4 using one die is 1 out of 6 We use proportional thinking in mixtures –2 cups flour to 5 cups total mixture (part-to- whole) –2 cups flour to 3 cups sugar (part-to-part)

Apply Skills Page 89 and 90

Homework Pages 221 an 222 All Activities All Problems

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