don steward
mathematics teaching 10 ~ 16

Wednesday, 2 February 2011

reptiles or sprugles

enlarge these shapes scale factor 2
try to fill the enlarged version with the original shapes
how many do you need?

do the same thing, enlarging scale factor 3

the interactive resource from Teacher LED is very helpful for this task
the name 'reptiles' was introduced by Solomon Golomb

show how 16 of these can fit together to make a similar shape

what happens to the lengths?
what happens to the areas?

reptiles on isometric paper:

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