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- Grade Range
- 7th - 9th
- Rating
Students calculate real ratios that exist between the planets Earth and Mars. After a lecture/demo, students use worksheets and access Internet sites to do their calculations. Full Review »
- Grade Range
- 12th - Higher Ed
- Rating
Students examine the formulas for main accounting ratios, and the reason for changes in accounting ratios over time. They apply the formulas on financial data available on a range of companies. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students examine ratios, including the Golden Ratio, a ratio of length to width that can be found in art, architecture, and nature. They examine different ratios to determine whether the Golden Ratio can be found in the human body. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students calculate the ratio of the height of the body to the height of the navel. They discover that the ratios are all approximately equal. Full Review »
- Grade Range
- 7th - 10th
- Rating
Students analyze the formation of ratios as they develop comparisons of two known quantities. These comparisons are used to formulate proportions and solve problems. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students examine the Fibonacci Sequence and how those numbers create the Golden Ratio. They identify real-life examples of the Ratio. Full Review »
- Grade Range
- 11th - Higher Ed
- Rating
Students define ratios and how they apply in a business context. They practice ratios through an activity that involves financial data. Full Review »
- Grade Range
- 4th - 6th
- Rating
Students develop knowledge of what ratios and proportions are and how to use them. They practice setting up basic ratios. Students apply ratios and proportions to practical situations. Full Review »
- Grade Range
- 7th - 10th
- Rating
Students comprehend that ratios and fractions are interchangeable. They compare ratios using common denominators, cross multiplication, and intuition. Students find equivalent fractions. They comprehend that equivalent ratios do not equate to equivalent mass. Students make play dough in groups. Each group is assigned a different ratio of flour to water. Full Review »
- Grade Range
- 7th - 9th
- Rating
Students explore the meaning of ratios and proportions. After exploring different methods of writing ratios, students identify ratios in real life problems. They explore how to set up a proportion and solve problems using cross products. Students solve proportions involving variables, and determine if two ratios are equal. Full Review »