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This classic memory game matches percents to fractions.
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The title says it all: this set of videos shows you how to match up fractions with their percentage alter-egos.
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This scale allows you to balance percents and fractions. It's a nice way to compare the two.
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Use bicycle gears to explore relationships between two gears.
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Use ratios to determine how much each coin is worth. Get a pen and paper ready.
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Use this scale tool to explore relationships between length, area, and perimeter.
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This page explores everything you need to know about the golden ratio and how it shows up in nature, architecture, and even cartoons.
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This activity explores ratios and how they're used in drawing. Is your arm span really the same as your height? Find out!
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This site offers a variety of word problems involving tipping your waiter. Who is a penguin, obviously.
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It makes fractions! And percents and decimals, too. This is a handy tool that shows what various fractions, decimals, and percents look like visually.
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Fight off space aliens using the awesome power of percents.
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Need to work on your shopping skills? Try this game and find your discounts.