Written by Bob Ansell

Exploring Polydron Sphera

Contact Details

PolydronSite E, Lakeside Business ParkBroadway LaneSouth CerneyCirencesterGloucestershireGL7 5XL

Tel: +44 (0)1285 863980Email: headoffice@polydron.com

This publication is designed to show what can be achieved withPolydron Sphera.

Polydron materials have been widely used in education and in the homefor over 30 years and have enriched the experiences of manythousands of children. Indeed, for many children Polydron has beentheir introduction to the wonderful world of 3-D geometry andconstruction.

Spherical PolydronSphera is the successful addition to the Polydron family of products. Itconnects to and brings all the benefits of Polydron and Frameworks tohelp understand spheres, cylinders and cones

Bob Ansell

1 Cones

■ A cone is a solid with acircular base and curvedsloping sides that meetat an apex.

■ Make some fractions of a cone

One Quarter

Three Quarters

One Half

A Double Cone

Bob Ansell

2 Cylinders

■ A cylinder has a circularbase and top.

■ Make some fractions of a cylinder.

One Half One Quarter

Three Quarters

■ Here is another way to make three quarters.

Bob Ansell

Sphere3■ Make some fractions of this

sphere.

One HalfThis is called a

Hemisphere

One Quarter

Use three eighths and oneeighth to make one half

One Eighth

■ This piece helps to makeconstruction easier.

Bob Ansell

Domes and Capsules

■ You might start your dome byremoving the base from thehemisphere.

■ You may find it helpfulto use this piece tocomplete the capsule.

4

Bob Ansell

Imagine and Create

■ Make each of these and explorewhat happens when they spin.

■ Make houses.

■ Make them taller.

5

What will you make?

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