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# Justice Adams's Proportion Presentation ("EXPERT Math Project")

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This is an Honor's Math PowerPoint presentation that I assisted my son with.

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### Justice Adams's Proportion Presentation ("EXPERT Math Project")

1. 1. Proportions for Pros Honors Math/3rd Period Ms. Shelly Brown-Jones 7-5Presented by Justice Adams
2. 2. Objective• To define a proportion and its parts and terms.• To exemplify the method of determining what constitutes a proportion and what does not (and to establish proportion to find missing terms).• To demonstrate examples of proportions and non-proportions.
3. 3. Defining a Proportion
4. 4. Showing Ratios• 1 boy for every 3 girls = 1:3• ¼ boys ¾ girls (a whole equals 4/4)• 25% or 0.25 are boys (divide 1 by 4)
5. 5. The Parts and Terms of a Proportion
6. 6. Testing Proportions• Cross products are used to test whether two ratios are equal and form a proportion. • Cross products are determined by simply cross- multiplying a given pair of ratios. • An equal (=) or not equal sign (≠) is used to correspond with whether or not the products are equal or are a proportion.
7. 7. Examples
8. 8. Finding Missing Terms in a Proportion
9. 9. Word Problems Using Proportions
10. 10. Proportion Quiz