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BPW Line Reflections: Symmetry & Transformations

Learn about flip and reflection symmetry in the new unit "Butterflies, Pinwheels, and Wallpaper Math". Complete tasks in your journal and Seesaw. Watch Mrs. Miner's video for instructions on finding a line of reflection or reflecting a shape.

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BPW Line Reflections: Symmetry & Transformations

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  1. Butterflies, Pinwheels, and Wallpaper Math CC7/8 – Be Prepared Journal: NEW UNIT!! • Date: 5/22/2019 2) Put a new tab in your journal labeled BPW 3) Title: BPW Line Reflections WARM-UP: Answer this question in your journal… What does it mean to say that a figure has flip or reflection symmetry? On Desk: Labsheet 1.1 Homework Tracking Sheet Turn In: TWMM Book In Your Planner: HW: BPW Worksheet #5-7 Return TWMM books by Friday!!

  2. Homework • Login to Seesaw • Complete the activity • Watch Mrs. Miner’s Video • Explain how to find a line of reflection or how to reflect a shape

  3. Tasks for Today • New Unit – BPW: Butterflies, Pinwheels & Wallpaper -Homework Tracking Sheet • Symmetry & Transformations • Lesson 1.1 – Line Reflections

  4. Use Labsheet 1.1

  5. What is the distance from: A to line m Ato line m B to line m B‘ to line m C to line m C‘ to line m D to line m D‘ to line m E to line m E‘ to line m What size/type angles are formed by the segments connecting each vertex and the line of symmetry? 90° or right angles

  6. The line of reflection is perpendicular to each segment at its midpoint. The line of reflection is the “perpendicular bisector” of each segment joining a point to its image. A is in the same location as A’ and E is also in the same location as E’

  7. Connectpairs of corresponding points on each part of the design. Find the midpoint of one of the segments. Draw a line that is the “perpendicular bisector” of each segment. (90 degree angle)

  8. XX’ is perpendicular to line m and points X and X’ are equidistantfrom line m.

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