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Dilation Teacher Resources
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Students investigate the concept of transformations and how they are used in various types of problems and define the terms of rotation, reflection, translation, and dilation. They practice using the GSP technology to apply practices to display the images in two or three dimensional space.
In this dilations and similarity worksheet, pupils solve 10 different problems that include various dilations. First, they determine the scale factor of dilations found in the illustrated graphs. Then, everyone determines the coordinates of the image of a point under a dilation with the center at the origin of scale factor.
In this transformations learning exercise, 10th graders solve and complete 27 various types of problems that include similar figures and justifying answers. First, they dilate the shape shown using a zoom factor from the origin. Then, students solve for the unknown variable in each similar figure. They also find the perimeter and area of the shaded region of the figure.
Students explore the concept of scale factors. In this scale factors lesson, students dilate polygons and determine the ratio of the perimeters and areas of an image and pre-image. Students use Ti-Nspires to graph triangles, measure angles, and determine the ratios of images and pre-images.
Tenth graders explore translations, rotations and reflections of two dimensional objects. For this geometry lesson, 10th graders use transformation to move objects and shapes around on a coordinate plane. They create a hands on transformation using constructions paper and graph paper.