This comprehensive study guide highlights the main terms and formulas needed to understand linear equations. Examples are included.
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Use cross products to solve proportions with a variable in the denominator
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Use algebra to solve proportions with the variable in the numerator.
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In this lesson students write proportions and then solve proportions by using equivalent rates. Students examine guided notes, review guided practice, watch instructional videos and attempt practice problems.
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In this lesson students recognize proportions as a statement of equivalent ratios. Students examine guided notes, review guided practice, watch instructional videos and attempt practice problems.
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In this lesson students write proportions and then solve proportions by using cross-products. Students examine guided notes, review guided practice, watch instructional videos and attempt practice problems.
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In this lesson students identify proportions by cross multiplying or simplifying ratios. Students examine guided notes, review guided practice, watch instructional videos and attempt practice problems.
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In this lesson students use proportions to find percents. Students examine guided notes, review guided practice, watch instructional videos and attempt practice problems.
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In this lesson students find a scale, ratio, or proportion given actual and scale dimensions. Students examine guided notes, review guided practice, watch instructional videos and attempt practice problems.
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Video tutorial uses examples to reinforce understanding of proportions. [7:09]
What is a ratio? How can we create equivalent ratios? Students work to express and extend relationships using ratios.
Illustrated examples partnered with follow-up practice problems for interpreting proportional relationships.
Percents can be rewritten as fractions, proportions, or decimals. We can use multiplication and division to find percentages or portions of different items. These methods are used often in money problems and other word problems. [1:34]
This lesson [1:49] introduces the student to how a fraction can be rewritten as a whole number. It is 1 of 11 in the series titled "Converting Fractions to Whole Numbers."
In this video segment from Cyberchase, the CyberSquad and Digit construct a physical profile of the person who kidnapped Choocroca, a giant cybercrocodile. [2:49]
This set contains questions about statistics involving how to choose a sample size to fit a desired maximum error bound. The student learns to do this on confidence intervals for proportions as well as confidence intervals for means.
Students learn about proportions using regular and souvenir baseball bats. This site contains a complete lesson plan, which is available in a printable version.
Students use their height and the length of the shadow to determine the height of buildings. A great outdoor activity to learn about proportions and ratios.
Download and print these worksheets to sharpen your skills working with fractions. Worksheets focus on modeling fractions, ratios and proportions, comparing, ordering, simplifying, converting, and order of operations.
This study guide looks at proportionality theorems for triangles and parallel lines intersected by transversals.
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