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Radius Teacher Resources
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Tenth graders explore circles using a graphing calculator. In this circles lesson, 10th graders write the equation of a circle with a given center and radius length. Students find the most appropriate model for each combination of data they graphed. Students also determine the regression equation and use it to make predictions about each relationship identified.
Here is a geometry worksheet in which learners dentify the parts of a circle, determine the circumference of a circle, and find the area of a circle and a part of a circle. The five-page worksheet contains explanation, examples, and sixteen questions. Answers are not included.
Students explore the concept of circles. In this circles instructional activity, students use their Ti-Nspire to collect data on various circles of different sizes. Students measure the diameter and circumference of the circles and plot the data in a scatter plot of diameter v. circumference. Students find the slope of the line to be Pi.
Students explore the concept of sine and cosine. For this sine and cosine lesson, students collect data from a unit circle about sine and cosine values at different angle measures. Students graph the sine and cosine data on a coordinate plane to discover the shape of the sine and cosine function.
In this multiplying decimals worksheet, students research the weight of 10 common objects on Earth, then multiply by a decimal factor to find the weight of each object on the different planets. Students research how scientists calculate the mass and radius of planets, then write a paragraph describing the methods.
Students investigate circles. In this geometry instructional activity, students read the book Sir Cumference and the First Round Table and discuss how to measure the diameter and circumference of circles. Students use circle cut-outs to calculate the diameter and circumference of circles.
The difference between circumference and radius is the focus of this geometry lesson. After entering data into a spreadsheet which has the formula for circumference of a circle built into it, pairs of learners perform a hands-on exercise where they cut pieces of string that go around the lids of jars, then lay the string across the lid to see the relative size difference between circumference and radius. A good lesson with many components.
In this galaxy worksheet, students calculate the volume of the Milky Way Galaxy, they determine the total mass, the density and the volume of the Milky Way Galaxy. They also solve 2 problems about the volume and size of the universe in comparison to the Milky Way Galaxy.
With an attractive format, this assignment charges your class to determine the circumference for 14 circles, given the diameter or radius. Some measurements involve fractional lengths, and two test-preparation-style questions wrap up the task. This resource deserves a spot in your homework library!