Ever find yourself looking at a clear blue sky and notice something that seems to be floating across your eye? Well, you're not alone. Watch this short video to find out exactly what causes this and other common visual phenomenon.

Concepts

eyes, retina, the optic nerve, optics, vision

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Additional Tags

science

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Instructional Ideas

• Include this video in a life science lesson series on the anatomy of the eye
• Hang a light blue sheet on butcher paper on a classroom wall and allow students to try to experience floaters for themselves
• Assign this video and corresponding assessment as homework in your flipped classroom

Classroom Considerations

• Video assumes viewers have a basic understanding of human biology

Pros

• Engaging animations help support the scientific explanations presented in the video
• Resource allows teachers to develop customized lessons based on the video
• A short assessment with five multiple choice and three free-responses questions is included with the video

Cons

• None

Common Core

SL.6.2 SL.7.2 SL.8.2 SL.9-10.2 SL.11-12.2 RST.6-8.7 RST.6-8.9 RST.9-10.9 RST.11-12.7 RST.11-12.9