Education Technology

Exploring Transformations

Subject Area
Math: Geometry: Transformational Geometry
Level
9-12
Activity Time
45 Minutes
TI Calculator
TI-Nspire™ Apps for iPad®
TI-Nspire CX series
TI-Nspire™ CX CAS/CX II CAS
TI-Nspire Version
3.2
Resource Types
Lessons
Format
TNS

Exploring Transformations

Activity Overview

Investigate translating and reflecting shapes in the coordinate plane and observe how the new image is related to the original shape.

Objectives

  • Students will identify the coordinates of a shape that has been translated.
  • Students will identify the coordinates of a shape that has been reflected.
  • Students will determine the original coordinates of a translated figure given its current coordinates and the directed distance of translation.

Vocabulary

  • pre-image
  • image
  • transformation
  • translation
  • reflection

About the Lesson

This lesson involves translating and reflecting shapes in the coordinate plane. As a result, students will:

  • Translate a shape horizontally and vertically by grabbing and moving points along a line.
  • Determine the coordinates of the image given the amount of translation.
  • Reflect a shape over the x-axis and the y-axis by moving points along a line.
  • Determine the coordinates of the image given the direction of reflection.
  • Determine the difference between a reflection and a translation.

Subject Area
Math: Geometry: Transformational Geometry
Level
9-12
Activity Time
45 Minutes
TI Calculator
TI-Nspire™ Apps for iPad®
TI-Nspire CX series
TI-Nspire™ CX CAS/CX II CAS
TI-Nspire Version
3.2
Resource Types
Lessons
Format
TNS
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