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