Chapter 5 - Ratio & Proportion

NC Standard -- Ratios & Proportional Relationships

Lessons

1-Ratios

2-Unit Rates

3-Equivalent Ratios & Rates

4-Using Ratios to Convert Measurement Units

5-Understanding Percents

6-Percents, Fractions, and Decimals

7-Finding the Percent of a Number

8-Finding the Whole

Proportion

Ratio

NC.6.RP.1 Understand the concept of a ratio and use ratio language to:

Describe a ratio as a multiplicative relationship between two quantities.
Model a ratio relationship using a variety of representations.

Equivalent Unit Ratios

NC.6.RP.2 Understand that ratios can be expressed as equivalent unit ratios by finding and interpreting both unit ratios in context.

Ratios & Measurement

NC.6.RP.3 Use ratio reasoning with equivalent whole-number ratios to solve real-world and mathematical problems by: ● Creating and using a table to compare ratios. ● Finding missing values in the tables. ● Using a unit ratio. ● Converting and manipulating measurements using given ratios. ● Plotting the pairs of values on the coordinate plane.

Ratio & Percents

NC.6.RP.4 Use ratio reasoning to solve real-world and mathematical problems with percents by: ● Understanding and finding a percent of a quantity as a ratio per 100. ● Using equivalent ratios, such as benchmark percents (50%, 25%, 10%, 5%, 1%), to determine a part of any given quantity. ● Finding the whole, given a part and the percent.

What you must be able to do...

NC.6.RP.1 Understand the concept of a ratio and use ratio language to:

Describe a ratio as a multiplicative relationship between two quantities.
Model a ratio relationship using a variety of representations.

NC.6.RP.2 Understand that ratios can be expressed as equivalent unit ratios by finding and interpreting both unit ratios in context.

NC.6.RP.3 Use ratio reasoning with equivalent whole-number ratios to solve real-world and mathematical problems by

Creating and using a table to compare ratios.
Finding missing values in the tables.
Using a unit ratio.
Converting and manipulating measurements using given ratios.
Plotting the pairs of values on the coordinate plane.

NC.6.RP.4 Use ratio reasoning to solve real-world and mathematical problems with percents by:

Understanding and finding a percent of a quantity as a ratio per 100.
Using equivalent ratios, such as benchmark percents (50%, 25%, 10%, 5%, 1%), to determine a part of any given quantity.
Finding the whole, given a part and the percent

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