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Geometry: Area, Scale Factor, Circumference
In this geometry worksheet, learners solve 10 problems regarding area, scale factors, and circumference. Students, in 3 of the problems, are given the circumference and asked to work backwards to find missing information.
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New Review Computing Actual Areas from a Scale Drawing
Square the scale factor when working with scaled drawings and area. The 19th lesson in a series of 22 introduces calculating actual areas from scale drawings. The lesson encourages pupils to use the square of the scale factor to find the...
7th Math CCSS: Designed
Areas of Geometric Shapes with the Same Perimeter
A triangle, square, hexagon, and circle all have a perimeter of one unit. Eighth graders must attempt to find the area of each and arrange them in order from least to greatest areas. A terrific task for applying four different area...
7th - 9th Math CCSS: Designed
New Review Fundamental Theorem of Similarity (FTS)
How do dilated line segments relate? Lead the class in an activity to determine the relationship between line segments and their dilated images. In the fourth section in a unit of 16, pupils discover the dilated line segments are...
8th Math CCSS: Designed
Find Scaled Area with a Scale Factor
Area is length times width, but what happens when you throw a scale factor in there? Show your mathematicians not only what happens, but why the answers result in a pattern. The data from a rectangle with different scale factors are...
6 mins 5th - 8th Math CCSS: Designed