As part of a study of muscles and muscle cells the narrator of this insightful video begins by reviewing the three types of muscle — smooth, cardiac, and skeletal. He then explains how actin and myosin play important roles in those muscles, causing them to contract and relax. 

Concepts

muscles, myosin, cells

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Additional Tags

science

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Instructional Ideas

• Prepare viewers the vocabulary in this video by posting the terms/definitions on your wall and/or discussing the words with classes beforehand

Classroom Considerations

• Assumes learners understand action potentials
• Turn on closed captioning for pupils to follow along
• Video 21 in a series of 47 

• This video is hosted on YouTube

Pros

• Table of contents highlights specific portions in order for teachers to replay parts of the video
• Closed captioning can be auto translated into almost any language

Cons

• None

Common Core

RST.9-10.2