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Students explore the mathematical formula called the "aspect ratio," which is simply a comparison between the length and width of an airplane wing. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students explore ratios in various contexts and from different perspectives. They explore the relationship between the numbers in the Fibonacci Sequence to develop a ratio. Full Review »
- Grade Range
- 6th
- Rating
Students explore a relevant application of ratios and proportions. They apply this concept through guided practice and interactive feedback. Full Review »
- Grade Range
- 6th - 12th
- Rating
Students view the video, Donald Duck in Mathmagic Land, and discuss examples in nature which have proportions of the golden ratio. They measure and record different body lengths from a worksheet and convert the ratios to equivalent decimal forms. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students practice angle measurements in triangles and apply ratio to angle measurements in triangles as well. For mastery of the concept, several students are asked to form a triangle by standing in a configuration in the room. Full Review »
- Grade Range
- 10th - 12th
- Rating
Students draw right triangles and measure the legs and hypotenuse of each, They use their measurements to compare ratios of each side to every other side. Students use these results to write paragraphs explaining what they concluded from the activity. Students are introduced to the mnemonic device "Sohcahtoa." Full Review »
- Grade Range
- 9th
- Rating
Students create clinometers using a protractor, weight, and string. They work in pairs to practice sighting objects above or below their line of sight. Students use ratios of right triangles to determine the height of a predetermined object. Full Review »
- Grade Range
- 5th
- Rating
Students explore the importance of triangles in the real world. They find the unknown side of a right triangle using a scale drawing. Students use Pythagoras' Theorem and other appropriate ratios. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students investigate the differences found in the dimensions of two squares. They look for congruence with the help of using a spreadsheet to organize information. The information is applied using graphing methods for a quadratic equation. Full Review »
- Grade Range
- 6th - 8th
- Rating
Students form a pattern called a geometric sequence by dropping a golf ball from successive heights. They explore the constant factor of this sequence, referred to as the constant or common ratio. Finally, students develop a plan for data collection and analysis to demonstrate that the stated hypothesis is valid. Full Review »
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