Light Travels in Straight Lines
Readiness
TEKS Objective
Demonstrate that light travels in a straight line until it strikes an object or travels from one medium to another and demonstrate that light can be reflected such as the use of mirrors or other shiny surfaces, and refracted such as the appearance of an object when observed through water.
Essential Understanding
The student knows that energy occurs in many forms and can be observed in cycles, patterns, and systems.
Science Background
Optics for Kids: Optical Research Associates (website) - It may be for kids, but this site makes the science of light interesting and easy for adults to understand too.
Optics for Kids
by Bruce Irving, Optical Solution Group, optics.synopsys.com
Signature Lesson
Light Travels in a Straight Line: Hamline University (website) - Simple investigation in which students use a flashlight and three index cards to demonstrate and observe that light travels in a straight line.
Light Travels in a Straight Line
Hamline University, http://serc.carleton.edu
- Supporting Lessons
- Extensions
- Assessment Ideas
- Literature Connections
- Related
TEKS - Additional Resources
Supporting Lessons
The Path of Light: Science Companion (PDF) – Shining a flashlight through a cloudy solution creates opportunities for students to observe how light travels.
The Path of Light
Science Companion, www.sciencecompanion.com
How Light Travels: Alabama Learning Exchange (website) - Students experiment to demonstrate and observe that light travels in a straight line and can be reflected using mirrors.
How Light Travels
Alabama Learning Exchange, http://alex.state.al.us
Elaboration Lessons and Extensions
How We See: Science Games for Kids (website) - Students discover how vision works as they experiment with lights & mirrors.
How We See
Science Games for Kids, www.sciencekids.co.nz
Light and Shadows: Learn NC (website) - Students discover that a pinhole viewer, like their eyes, is a light detector; that light travels in a straight line; and that images are produced by light that passes through a small hole (aperture).
Assessment Ideas
Sample Question: Massachusetts Department of Elementary & Secondary Education (website) - Open response question that tests student understanding of how light interacts with different materials. Students can be scored from a rubric provided on the page. http://www.doe.mass.edu/mcas/student/2010/question.aspx?GradeID=5&SubjectCode=sci&QuestionID=12001
Literature Connections
Experiments with Light and Mirrors. Gardner, R. (ISBN-13: 978-0766028586)
Day Light, Night Light: Where Light Comes From. Branley, Franklyn (ISBN-13: 978-0064451710)
Science With Light and Mirrors. Edom, H. (ISBN-13: 978-0746006962)
Rainbow and You. Krupp, Edwin (ISBN-13: 978-0688156015)
Additional Resources
The Science Explorer: Exploratorium (website) - Students may explore concepts of light through hands on investigations.
The Science Explorer
Exploratorium, www.exploratorium.edu
Optics - Light, Color and Their Uses Educator Guide: NASA (website) - The guide contains color and light activities using lenses, prisms and mirrors to create telescopes, periscopes, microscopes and kaleidoscopes. Other activities include finding focal length and understanding reflection, refraction and diffraction.
Optics - Light, Color and Their Uses Educator Guide
NASA, www.nasa.gov
TEKS Navigation
Grade 5
Need Assistance?
If you need help or have a question please use the links below to help resolve your problem.
Comments