Mon Prof Augmenté
Orb Web Geometry
Open to everyone until Thursday, October 1
To keep it, print it while it is open.
An orb web is built from straight lines that radiate from a center and a spiral that crosses them. The spider can cover a wide area with only a small amount of silk.
In the picture
- The center hub where the radial lines meet
- A straight radial line running from the center toward the edge
- The evenly spaced spiral thread crossing the radial lines
- An anchor thread fastened to a branch or stem
Examples
- A spider web between garden plants
- The spokes and rim of a bicycle wheel
Key takeaways
- Straight radials and a spiral can enclose a large area with few threads.
- Even spacing helps the web use silk efficiently.
Carry on in the app
Three questions on this lesson, to check the idea stuck. Free in the app while the lesson is in the free week.
At least one new illustrated lesson every weekday for your child’s year, with its quiz and a reminder at 6:15 pm.
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