Unit 3 · Transformations
Unit 3 — Transformations
Explore the four rigid motions — translations, reflections, rotations, and their compositions — and use them to define congruence through transformation.
9 lessons8 learning objectives
Learning Objectives
Goal 1Define transformation, pre-image, and image.
Goal 2Translate a figure using a coordinate rule.
Goal 3Reflect figures over the x-axis, y-axis, y=x, and y=−x.
Goal 4Apply coordinate rules for 90°, 180°, and 270° rotations about the origin.
Goal 5Apply a sequence of two or more transformations.
Goal 6Identify lines of symmetry in figures.
Goal 7State the transformation-based definition of congruence.
Goal 8Apply all translation, reflection, and rotation coordinate rules.
Lessons