Reflections: Flipping over the x- and y-axis | 8.G.A.1 💗
6.9 هزار بار بازدید -
2 سال پیش
-
In this video lesson we
In this video lesson we will learn how to reflect images in the coordinate plane over the x and y axis. We will first identify the line of reflection given in the instructions. We will then determine the distance the original point is from the line of reflection and plot an image point over the line of reflection the same distance. We will reflect one point at a time for the given figure. Each image point or vertex will be labeled with a ' which is read as prime. We will learn the rule for reflecting a point in the x-axis to be (x, y) to (x, -y) and the rule for reflecting a point in the y-axis to be (x, y) to (-x, y). When a point is reflected in the x-axis the x-coordinate remains the same and the y-coordinate the opposite. When a point is reflected in the y-axis the y-coordinate remains the same and the x-coordinate is the opposite. All reflected images are congruent to the original figures which means that all corresponding sides and corresponding angles are equal measures. Student practice is embedded in the lesson with modeled exemplar solutions.
#transformations
#reflections
#congruent
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Website: www.magicofmath1.com
TPT Resources: https://www.teacherspayteachers.com/S...
💗 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...
https://www.teacherspayteachers.com/S...
00:00 Introduction
00:45 Vocabulary
02:25 Real World Reflection #1
02:55 Real World Reflection #2
03:09 Student Practice #1
04:00 Student Practice #2
04:39 Student Practice #3
05:09 Student Practice #4
05:55 Reflections in the Coordinate Plane
07:18 Reflections in the x-axis
08:49 Rule for Reflections in the x-axis
10:11 Student Practice #5
11:30 Reflections in the y-axis
12:46 Rule for Reflections in the y-axis
13:49 Student Practice #6
15:23 Student Practice #7
Common Core Math Standards
Understand congruence and similarity using physical models, transparencies, or geometry software.
8.G.A.1 Verify experimentally the properties of rotations, reflections, and translations:
8.G.A.1.A Lines are taken to lines, and line segments to line segments of the same length.
8.G.A.1.B Angles are taken to angles of the same measure.
8.G.A.1.C Parallel lines are taken to parallel lines.
8.G.A.2 Understand that a two-dimensional figure is congruent to another if the second can be obtained from the first by a sequence of rotations, reflections, and translations; given two congruent figures, describe a sequence that exhibits the congruence between them.
8.G.A.3 Describe the effect of dilations, translations, rotations, and reflections on two-dimensional figures using coordinates.
#transformations
#reflections
#congruent
Free Edpuzzle - https://edpuzzle.com/media/634f369293...
Purchase an Editable Copy of the Animated Google Slides Used to Create this Video - https://www.teacherspayteachers.com/P...
Website: www.magicofmath1.com
TPT Resources: https://www.teacherspayteachers.com/S...
💗 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...
https://www.teacherspayteachers.com/S...
00:00 Introduction
00:45 Vocabulary
02:25 Real World Reflection #1
02:55 Real World Reflection #2
03:09 Student Practice #1
04:00 Student Practice #2
04:39 Student Practice #3
05:09 Student Practice #4
05:55 Reflections in the Coordinate Plane
07:18 Reflections in the x-axis
08:49 Rule for Reflections in the x-axis
10:11 Student Practice #5
11:30 Reflections in the y-axis
12:46 Rule for Reflections in the y-axis
13:49 Student Practice #6
15:23 Student Practice #7
Common Core Math Standards
Understand congruence and similarity using physical models, transparencies, or geometry software.
8.G.A.1 Verify experimentally the properties of rotations, reflections, and translations:
8.G.A.1.A Lines are taken to lines, and line segments to line segments of the same length.
8.G.A.1.B Angles are taken to angles of the same measure.
8.G.A.1.C Parallel lines are taken to parallel lines.
8.G.A.2 Understand that a two-dimensional figure is congruent to another if the second can be obtained from the first by a sequence of rotations, reflections, and translations; given two congruent figures, describe a sequence that exhibits the congruence between them.
8.G.A.3 Describe the effect of dilations, translations, rotations, and reflections on two-dimensional figures using coordinates.
2 سال پیش
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