## Browse - Geometry

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1. Scale factor
How to teach scale factor to 7th graders.
- Date of thread's last activity: 17 March 2008

2. Approximations of pi
Deciding which approximation of pi to use in various situations.
- Date of thread's last activity: 13 March 2015

3. Cylinders
Helping students design a cylinder with the optimal volume and minimal surface area.
- Date of thread's last activity: 29 February 2008

4. Polyhedra and Euler's formula
Teaching properties of polyhedra to elementary children.
- Date of thread's last activity: 13 April 2008

5. Parallel lines
Helping students to understand more about parallel lines by visualizing planes that cut through 3-dimensional figures.
- Date of thread's last activity: 2 April 2008

6. Introduction to volume
Activities for introducing volume.
- Date of thread's last activity: 25 January 2008

7. Surface Area of Prisms
Teaching a formula for surface area of a prism.
- Date of thread's last activity: 3 October 2009

8. Measuring the area of circles
Why we use square inches to measure the area of circles.
- Date of thread's last activity: 11 December 2007

9. Right angles
Teaching young children about squares and right angles.
- Date of thread's last activity: 14 May 2008

10. The Golden Ratio
Resources and suggestions for teaching the Golden Ratio.
- Date of thread's last activity: 1 December 2007

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