Written by Bob Ansell
Exploring Polydron Sphera
Contact Details
PolydronSite E, Lakeside Business ParkBroadway LaneSouth CerneyCirencesterGloucestershireGL7 5XL
Tel: +44 (0)1285 863980Email: [email protected]
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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Also available from Polydron:
See www.polydron.com for full details of all our ranges
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