Understanding Similar Figures | 8.G.A.4 💗

Описание к видео Understanding Similar Figures | 8.G.A.4 💗

8.G.A.8.G.A.In this video lesson, we will learn the definition of similar figures. Similar figures are figures that are the same shape but different sizes. Similar figures have corresponding sides that are proportional and corresponding angles that are congruent. We will learn how to identify corresponding sides and angles and how to use a proportion to determine if figures are similar. We will also learn how to use a proportion to find a missing side length given that two figures are similar. We will also learn why it is important to enlarge or reduce an image proportionally to avoid distorting the image. Student practice is embedded in the video and exemplar solutions are modeled and explained.

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TPT Resources: https://www.teacherspayteachers.com/S...

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Grade 8 Transformations Unit Playlist -    • Transformations UNIT -Grade 8 Math fr...  

💗 Preparing for the Unit - Review The Coordinate Plane and Graphing
   • Getting to the Point: Reviewing the C...  
💗Congruent Figures - How to Define and Identify
   • HOW to Graph Points (on the Coordinat...  
💗Translations - The Mathematical Slide
   • How to Perform Translations:  The Mat...  
💗Reflections - The Mathematical Flip
   • Reflections:  Flipping over the x- an...  
💗Rotations - The Mathematical Turn
About the Origin -    • How to Rotate Figures in the Coordina...  
About a Vertex/Point
   • Rotate a Figure about a Vertex in the...  
💗Similar Figure - How to Define, Identify & Use
   • Understanding Similar Figures | 8.G.A...  
💗Dilations - The Mathematical Change in Size
   • Dilations in the Coordinate Plane | 8...  
💙REVIEW - Similar Figures & Dilations (Pear Deck/Google Slides)
https://docs.google.com/presentation/...

00:00 Introduction
00:36 Similar Figures - Definition
00:55 How to Determine Similar Figures
03:14 Similar or Not? ~Distorted Images
04:26 Student Practice #1 - Which Two are Similar?
07:00 Using Similarity to Find a Missing Side Length
08:12 Student Practice #2 Find the Missing Side Length
09:21 Student Practice #3 Real World Application

Common Core Math Standard
Geometry 8.G.A. Understand congruence and similarity using physical models, transparencies, or geometry software.

8.G.A.4 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.

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