geometry
This section is loosely titled geometry. It contains ideas for constructions, making polyhedra, and some other objects. Many of the ideas are suitable for all students, although some of the polyhedra ideas require Pythagoras and trigonometry, so are only suitable for able KS3 or KS4 students.
 making polyhedra
 zometool
 fivefold symmetry

stellation
 truncation
 spinning tops
 the rhombicosidodecahedron
 the great rhombicosadodecahedron
 spherical models
 playing card models
 slidetogethers
 nolids
 geodesic dome
 straw sculptures
 goldberg polyhedron
 space filling polyhedra
 knotologie
 IQ light
 duality
 angle deficiency
 vertex figures

tensegrity structures
 rhombic dodecahedron
 rhombic zonohedra
 the tetrahedron
 orderly tangles
 soap bubbles
 area and perimeter
 twist and lock blocks
 J cubes
 circle theorems and isosceles triangles
 polygon paper
 tessellations
 shadowfolds
 mathematical beading
 dissections
 somea puzzles
 trees
 planar graphs

linkages
 pantograph
 curves of pursuit
 impossible stacks
 kaleidoscopes
 the ellipse
 the hyperboloid
 rectangular hyperbola
 circles and islamic patterns
 polyominoes
 4D models
 1100 and vice versa
 maths art
 gaudi