Wednesday, 23 May 2018
equations with arithmetic and quadratic sequences
these resources are from Jason Steele, Barnsley they are based on Martin Wilson's idea
Tuesday, 1 May 2018
temperature seems a helpful context for looking at directed number arithmetic two equivalent statements are considered the end subtract ...
Monday, 30 April 2018
this (rather brilliant) Excel version of transformation golf was produced by Duncan Keith in 2001 his website at the time was maths@subtang...
follow the transformation instructions M(PQ) tells you to reflect the shape in the m irror line PQ a vector tells you to translate the s...
4d + 4u
4u: using 4 lengths of length 1 u nit 4d: and 4 lengths of length (square root 2) 1 d iagonal create a closed shape try to create shapes...
recognising transforms giving all the details powerpoint: rabbit transforming spotting
what angles do the rabbits turn through? powerpoint: rabbit rotation angles not just rabbits powerpoint: rotating things (makes me feel...
windmills, order 4 and order 3
creating shapes with rotational symmetry intended to be done (initially attempted) without tracing paper powerpoint: windmills ...
Sunday, 29 April 2018
3D geometry: truncated polyhedra
it can be interesting to explore what happens to the numbers of faces, edges, and vertices of solids when you (symmetrically) cut off the co...
3D geometry: total angle sum
if you sum all the angles of all the faces this is called the total angle sum (the TAS) it was explored by Descartes (who obtained Euler...
3D geometry: deltahedra
the deltahedra can be reasonably easy to construct all the faces are equilateral triangles powerpoint: deltahedra
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