Math CC7/8 – Be Prepared On Desk: HW: BPW p. 19, #5-7 (ACE – WS)

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Math CC7/8 – Be Prepared On Desk: HW: BPW p. 19, #5-7 (ACE – WS) Pencil Calculator Math Journal TwMM Learning Log BPW Learning Log Learning Log: HW: BPW p. 19, #5-7 (ACE – WS) Turn in TwMM books? Pass back TwMM Tests tomorrow

Tasks for Today New Unit – BPW: Butterflies, Pinwheels & Wallpaper Symmetry & Transformations Lesson 1.1 – Line Reflections

Use Labsheet 1.1

What is the distance from: A to line m A‘ to 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

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’

Connect pairs 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)

XX’ is perpendicular to line m and points X and X’ are equidistant from line m.