Lesson Plan: Reflecting Light Using Mirrors Science • Second Year of Preparatory School
This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to explain the directions of light rays reflected from flat mirrors.
Objectives
Students will be able to
- recall that light rays travel in straight lines,
- recall what is meant by the “normal” to a surface,
- recall what is meant by the term angle of incidence for reflection and identify it on a diagram,
- recall what is meant by the term angle of reflection for reflection and identify it on a diagram,
- recall that for reflection off a flat mirror, the angle of reflection is equal to the angle of incidence,
- interpret ray diagrams of reflections off a flat surface,
- measure angles using a protractor,
- recall that for reflection of a light ray off a flat surface, the incident ray, the reflected ray, and the normal all lie in the same plane.
Prerequisites
Students should already be familiar with
- the fact that light can reflect from surfaces,
- what angles are.
Exclusions
Students will not cover
- transmission,
- refraction,
- wave properties of light.
