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• Sorting them out • • • • I RM125 ~ • Tessellating triangles • • • •
~:N'HI1'~ A group of children were talking in the cloakroom REMEMBER
about their heights, weights and shoe sizes.
PAGE 100 A tessellation is a tiling pattern
which can continue in any direction
and in a way you can predict.
Here is a tessellation of triangles, partly coloured.
[JJ Decide how to test matching triangles
like these to see if they tessellate.
Choose materials to help you.

c

isosceles
t
This is what Jim thinks:
m Write what you think.

CHALLENGE
Try to find a way to make this tessellate.

non-regular quadrilateral
m Use these measurements to help you complete RM 125.
m1

rn rn

Practical: using measurements to complete Practical: testing matching triangles to see if
RM 125. they tessellate.

Matching triangles can always tessellate.

Challenge
Practical: finding a way to show that all
matching non-regular quadrilaterals tessellate.