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- Grade Range
- 6th - 7th
- Rating
Students understand, write and use ratios. After a lecture/demo, students come up with ratios that represent things found in their classroom, such as how many girls/boys or blond hair/brown hair, etc. Full Review »
- Grade Range
- 4th - 5th
- Rating
Students use the phenomenological approach to complete the activities, calculate ratios and proportions and compare and contrast group data with class data. Full Review »
- Grade Range
- 3rd - 6th
- Rating
Students collect data using M&Ms, fill in charts, and write ratios and fractions for each color M&M. Full Review »
- Grade Range
- 5th - 8th
- Rating
Students get practice with the Ratio Direction Arrow. These arrows redirect pit droids with a specific rule. For example, a 2:1 Ratio Arrow redirects 2 pit droids, then allow 1 pit droid to pass, then redirect 2 more, etc. Full Review »
- Grade Range
- 9th - 11th
- Rating
Students examine the use of variable and ratio in everyday situations including figuring out the gear ratios for the gears on a 12 speed bike. They use the bubble sort technique to write a computer program which will determine the bicycle gears. Full Review »
- Grade Range
- 5th - 8th
- Rating
Students investigate the use of multiplication and division of whole numbers to solve problems including equivalent ratios and rates. Full Review »
- Grade Range
- 6th - 8th
- Rating
Students view a PBS video entitled, "Horatio's Drive." They collobrately use Mapquest on the internet in groups to determine distances covered. They generate the mathematical averages, ratios, and rates to calulate the aspects of Horatio's road trip. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students calculate the SA/V ratio and volume of phenophthalien agar that are cut into different shapes. They then let ammonia diffuse into the various pieces of agar and determine the effect that SA/V had on the rate of diffusion. Full Review »
- Grade Range
- 10th - 12th
- Rating
Students listen to a lecture on trig ratios. They work several examples. Students define sine, cosine, and tangent. Full Review »
- Grade Range
- 6th - 8th
- Rating
Students explore the Fibonacci sequence, examine how the ratio of two consecutive Fibonnacci numbers creates the Golden Ratio. They identify real-life examples of the Golden Ratio. Students discover the Fibonacci Sequence with the rabbit problem. Full Review »
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