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Dilations (A) WORKSHEET
Suitable for Grades: 8th Grade
CCSS: 8.G.A.4
CCSS Description: Understand that a two-dimensional figure is similar to another if the second can be obtained from the first by a sequence of rotations, reflections, translations, and dilations; given two similar two-dimensional figures, describe a sequence that exhibits the similarity between them.
Dilations (A) WORKSHEET DESCRIPTION
Dilations (A) allows students to practice enlarging basic shapes by positive integer scale factors, with and without a center of dilation.
In section A, students will enlarge a cuboid, a triangle, and an ‘L’ shaped hexagon by two different scale factors each. This gives learners a chance to see variation of scale factors with the same polygons and practice dilation of shapes with vertical and horizontal edges before progressing.
Next, in section B, the same shapes are enlarged by the same scale factors, but this time, from a given center of dilation, opening up a chance for discussion of “What’s the same? What’s different?”. We have included centers of dilation that are on and off the objects so students can again notice the difference between the two. Teachers/parents can introduce and discuss invariance in dilations.
