# Transformations Day 1 (Introduction)

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PDF

(907 KB|47 pages)
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Standards
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I have used these presentations for the past five years to teach transformations. (I do make small edits each year - these were edited September 2018)

Day 1 = Introduction to Transformations

Dat 2 = Reflections

Day 3 = Translations

Day 4 = Rotations

I usually use Google Slides or Powerpoint to show this presentation but a PDF really captures everything. (I haven't put the time in to add transitions or animations anyway.)

Day 1: Introduction to Transformations slides give a good foundation for the work we do with specific isometries. It introduces the terms rigid motion, isometry, preimage, image, and mapping. It uses a marching band as an example to work through the vocabulary and then provides more "mathy"/"number" examples to practice students' skills.

Use geometric descriptions of rigid motions to transform figures and to predict the effect of a given rigid motion on a given figure; given two figures, use the definition of congruence in terms of rigid motions to decide if they are congruent.
Given a geometric figure and a rotation, reflection, or translation, draw the transformed figure using, e.g., graph paper, tracing paper, or geometry software. Specify a sequence of transformations that will carry a given figure onto another.
Represent transformations in the plane using, e.g., transparencies and geometry software; describe transformations as functions that take points in the plane as inputs and give other points as outputs. Compare transformations that preserve distance and angle to those that do not (e.g., translation versus horizontal stretch).
Describe the effect of dilations, translations, rotations, and reflections on two-dimensional figures using coordinates.
Total Pages
47 pages
N/A
Teaching Duration
50 minutes
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