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Ratios, Proportions, and Similarity

This concept covers topics related to simple ratios, unit rates, and equivalency/proportions. The use of ratios in similar figures, indirect measurement, rates of change, and scaling of drawings and models are also covered.
The concept is broken into smaller topics, which makes it easier and much more fun for students. The topics are listed below:-
Indirect Measurement
This topic covers indirect measurements and its use in calculation of unknown lengths of similar figures.
Video Lesson for Indirect Measurement
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Maps, Models, and Scale Drawings
The use of ratios in scaling of a figure is covered in this topic. Calculation of actual measurement using the scale factor is also covered.
Video Lesson for Maps, Models, and Scale Drawings
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Proportions (Equivalent Ratios)
In this topic, we learn to find a missing term (first, second, third or fourth term) in a proportion and determine whether the given terms are in proportion or not. We also learn to establish a proportion first to find the missing term in application problems.
Video Lesson for Proportions (Equivalent Ratios)
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Rates and Unit Rates
In this topic, we learn to find rates. We learn to compare quantities using unit rates along with some problem solving applications.
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Slopes and Rate of Change
This topic covers finding slopes and rates of change. We also learn to interpret real life applications of various rates of change.
Video Lesson for Slopes and Rate of Change
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