Education Technology

Reflections- Lesson Bundle

Activity Overview

In this interactive video lesson series, students will be introduced to reflections and their properties. The lessons allow students to play, investigate and explore which leads to discovering the properties of reflected figures.

Google Form for Paperless Classrooms

The student worksheet has been provided as a Google Form to provide support for the "paperless classroom". Copy the Google Form here. (Note: For more information, visit Google Support). The Google Form brings the student activity to life with the videos embedded. PDF's are also provided in the Download section. For optimal student engagement, have students download the TNS file prior to watching the videos, and then actively engage in the explorations while using their student activity sheet.


Students will:

  • verify experimentally the properties of reflections about various lines.
  • learn to identify and perform reflections.
  • understand the effects that a reflection has upon a triangle by easily manipulating the triangle.
  • explore the relationship between the corresponding parts of the pre-image and image triangles.
  • explain how underlying properties relate to reflection.
  • discover how to reflect figures about lines by hand.

About the Lesson

This series of video lessons exploring Reflections is designed to be a first exposure to geometric transformations for middle grades or high school. These video explorations are ideal for distance learning, and have been designed so that students can investigate and discover the math quickly while being guided through the exploration.

Extended Explorations (optional):

For an alternative approach to the lesson (without the use of guided videos), download the "Extended Exploration" folder. These files have been designed for students to investigate and discover the math on their own. For optimal results for students using the "Extended Exploration" materials, always have students do the “Tour” activity first – before doing any of the other lessons. The 'Tour' contains information that is needed to understand how to do the other lessons. It is recommended that students follow the sequence of lessons, but once the Tour is completed, the lessons can be done in any order.