don steward
mathematics teaching 10 ~ 16

Monday, 5 December 2016

Yohaku-like fraction addition puzzles

brought to my attention by one of Ed Southall's tweets (thanks) @solvemymaths

the name is created by Michael Jacobs who has many Yohakus,
for integers, decimals and directed numbers as well as fractions,
with multiplication as well as addition
2 by 2 up to 4 by 4 grids
and algebriac expression multiplication

these are simple but highly effective puzzles that involve practice of a variety of skills

the powerpoint suggests a way to tackle these particular fraction puzzles (Egyptian fractions)

(there might be more than one solution to some of these?)

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