Friday, 5 May 2017

Decimals






























Decimal/Fraction Challenge

Solution 
a) Mr Peabody's house is 2 1/2 km from the cheese shop.
2 km - $2.34
4 km - $4.26
6 km - $6.18
8 km - $8.10


Students' Solutions and Thinking



Some students chose to double their answers in order to figure out the pattern for (4, 6, 8 km) Upon reflection, after our Math Congress, they realized this strategy would not provide the correct answer. Why?







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