# ALEX Lesson Plan

## The Eyes Have It

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This lesson provided by:
 Author: Ginger Boyd System: Geneva County School: Samson Middle School
General Lesson Information
 Lesson Plan ID: 35610 Title: The Eyes Have It Overview/Annotation: In this lesson, students will investigate how light rays reflect from the surface of an object and allow us to see the object by viewing several small items inside a black bag with and without the use of a light source. Students will work collaboratively on an online simulation to control the path of light in order to illuminate objects. Students will construct a model to describe how an object can be seen when light reflected from its surface enters the eye.This lesson results from the ALEX Resource Gap Project.
Associated Standards and Objectives
Content Standard(s):
 Science SC2015 (2015) Grade: 4 8 ) Construct a model to explain that an object can be seen when light reflected from its surface enters the eyes. NAEP Framework NAEP Statement:: P4.2: Objects vary in the extent to which they absorb and reflect light and conduct heat (thermal energy) and electricity. NAEP Statement:: P4.9: Light travels in straight lines. When light strikes substances and objects through which it cannot pass, shadows result. When light travels obliquely from one substance to another (air and water), it changes direction. Unpacked Content Scientific And Engineering Practices:Developing and Using ModelsCrosscutting Concepts: Cause and EffectDisciplinary Core Idea: Waves and Their Applications in Technologies for Information TransferEvidence Of Student Attainment:Students: Construct a model and use it to explain that in order to see objects that do not produce their own light, light must reflect off the object and into the eye. Teacher Vocabulary:reflection opaque translucent transparent refractionKnowledge:Students know: Light enters the eye, allowing objects to be seen. Light reflects off of objects, and then can travel and enter the eye. Objects can be seen only if light follows a path between a light source, the object, and the eye.Skills:Students are able to: Construct a model to make sense of a phenomenon. Identify relevant components of the model including: light (including the light source), objects, the path that light follows, and the eye.Understanding:Students understand that: An object can be seen when light reflected from its surface enters the eyes.AMSTI Resources:AMSTI Module: Energy and Waves Alabama Alternate Achievement Standards AAS Standard: SCI.AAS.4.8- Identify a model that shows the path of light reflected from the surface of an object to be seen by the eye.

Local/National Standards:

Develop a model to describe that light reflecting from objects and entering the eye allows objects to be seen. 4-PS4-2

Primary Learning Objective(s):

Students will be able to:

1. explain how light rays reflecting from the surface of an object help us see an object.
2. construct a model to describe how an object can be seen when light reflected from its surface enters the eye.