Lesson Plan: Correcting Vision Using Lenses | Nagwa Lesson Plan: Correcting Vision Using Lenses | Nagwa

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Lesson Plan: Correcting Vision Using Lenses Science • Third Year of Preparatory School

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This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how human vision can be corrected using different kinds of lenses.

Objectives

Students will be able to

  • recognize that defects in vision are due to deformations of the eye,
  • recognize that, for clear vision, the image produced by the lens of the eye must form at the retina,
  • state what is meant by the term short-sighted,
  • recall what deformation of the eye produces short-sightedness,
  • recall what kind of lens can be used to correct short-sightedness,
  • state what is meant by the term long-sighted,
  • recall what deformation of the eye produces long-sightedness,
  • recall what kind of lens can be used to correct long-sightedness.

Prerequisites

Students should already be familiar with

  • convex and concave lenses,
  • drawing ray diagrams.

Exclusions

Students will not cover

  • varifocal lenses,
  • defects of vision other than short-sightedness and long-sightedness.

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