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MEB 9.1.1 ยท NumbersFoundations of the Real Numbers
MEB 9.1.1 ยท Numbers
Foundations of the Real Numbers
Follow one number, the side of a square of area 2, across five forms: its family, its two names, a list of moves, a repeated stretch, and the root that names it.
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The question
Which number is the side of a square of area 2?
Think about it
Layla cuts a square from a sheet of card. Its area is 2 square m.
She puts a mark on the line for one side. The mark sits between 1 and 2.
Which number is it?