Is your class ready to size up the topic of diffusion? Help them get cell shape savvy with a well-written handout. The resource covers how substances such as oxygen passively move through the cell membrane and how cell size and shape influence the rate of diffusion.

Concepts

cells, diffusion, oxygen, surface area, time, comparing size, comparing shapes, cell membranes

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Additional Tags

science

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Instructional Ideas

• Expand the lesson using content easily located on the publisher's website
• Pass around 3-D cell models to give your hands-on learners a visual aid
  
  

Classroom Considerations

• Students should understand the concept of diffusion before discussing the factors that affect diffusion rate
• Make double-sided copies for each pupil and provide Internet access, so they can check out related videos and animations
  

Pros

• Examples clarify the content nicely
• Pupils easily locate extra help, thanks to the related resources provided on the handout
  

Cons

• None

Common Core

RST.9-10.2 RST.11-12.2