Students discover a formula for finding the perimeter of a rectangle by using string. After a lecture/demo, students receive a worksheet with pre-drawn rectangles so they can practice computing perimeter with their string.
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New Review How Does Scale Factor Affect the Areas and Perimeters of Similar Figures
Are all the measurements scalable? Pupils work in groups or alone to determine whether figures are similar and find any missing side lengths. Then, they calculate the perimeters and areas of the figures. Finally, using the measurements,...
9th - 12th Math CCSS: Designed
What's the Formula for the Perimeter of a Rectangle?
Discover how to find the algebraic formula for the perimeter of a rectangle through this tutorial. Your algebra learners will be guided towards the thinking steps around this concept. After showing the video, invite your class to model...
4 mins 6th - 12th Math
New Review Rediscovering Patterns in Pick's Theorem—Investigating Pick's Theorem
Pick the area of figures wisely. Using a geoboard, learners investigate the relationship between the area of a figure and the perimeter and interior pins in the first of a three-part series. They use the pattern to develop the equation,...
9th - 12th Math CCSS: Adaptable