PPT-Dilations

Objective Dilation What is a Dilation A dilation is a transformation that changes the size but not the shape of the figure We use to identify new points A Dilation can enlarge or reduce a figure by a . Dilations on the Coordinate Plane. Enlarging or reducing a figure is called a . dilation. A dilated figure is . similar. to the original figure. The ratio of the new figure to the original is called a . Dilation. A dilation is a transformation in which a figure is enlarged or reduced with respect to a fixed point . C. called the center of dilation and a scale factor . k, . which is the ration of lengths of the corresponding sides of the image and . Dilation. A . transformation in which a figure is enlarged or reduced with respect to a fixed point . C. called the center of dilation and a scale factor . k, . which is the ratio of lengths of the corresponding sides of the image and .   WARM-UP . STRETCH. Today you will investigate a transformation called a . dilation.  that enlarges or reduces a figure while maintaining its shape.  After creating new enlarged polygons, you and your team will explore the relationships that exist among polygons that look alike but are different sizes. Agenda. Embedded Assessment Review. Triangles Cut by Parallel Lines. Dilations. Similarity Shortcuts: AA. Debrief. DO NOW 12/8: . Write an equation that will . show the tree’s height (h) in . terms of the shadow (s) . Dilations. What is a Dilation?. Dilation. is a transformation that produces a figure similar to the original by proportionally shrinking or stretching the figure.. Dilated PowerPoint Slide. Proportionally. By Brit Caswell. What is a Dilation?. Pg. 587. A stretch! . Think of Ant Man!. Is a dilation a rigid motion?. If the scale factor is . <. 1. , the dilation is called a . reduction. .. If the scale factor is . in real life. HW: Maintenance Sheet 3 . (7-8). I can use the properties of translations, rotations, and reflections on line segments, angles, parallel lines or geometric figures. . I can show and explain two figures are congruent using transformations (explaining the series of transformations used) . Geometry Common Core Test Guide. Sample Items. Old or New?????. Old or New?. Old or New?. Trees that are cut down and stripped of their branches for timber are . approximately cylindrical. . A timber company specializes in a certain type of tree that has a . I can. :. I can define dilations as a reduction or enlargement of a figure.. I can identify the scale factor of the dilation.. Vocabulary. :. Dilations. Center of Dilation. Similar. Scale Factor. Enlargement. Draw dilations.. Draw dilations in the coordinate plane.. Definitions. A . dilation. or scaling is a similarity transformation that enlarges or reduces a figure proportionally with respect to a center point and a scale factor.. Bump in the Road. Write down something you found. confusing from material covered . yesterday.. Properties of Dilations. Module 3. LP2. Example 1: Dilating a segment. D. ilate . with a scale factor . Session Objectives. Examine the development of mathematical understanding across the module using a focus on concept development within the lessons.. Identify the . big idea . within each topic in order to support instructional choices that achieve the lesson objectives while maintaining rigor within the curriculum.. Geometric Stretching, Shrinking, and Dilations. Stretching/Shrinking. Horizontal. Affects the x-values. (2x, y) is a horizontal stretch. (. x, y) is a horizontal shrink.  . Vertical. Affects the y-values.