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Why the order of operations? 
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#19
Mar514, 06:54 AM

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Parenthesis use, for arithmetics between more than 2 numbers SHOULD be taught, and children will take it easily. I have myself taught one child with a diagnosis of slight mental retardation,in half an hour how parentheses are just "math grammar/syntax", that tells what we should do first. The child found it fun to see how 5(32)=4, whereas (53)2=0. That is, understanding how parantheses matter. The major fallacy in today's school teaching is to introduce parentheses at a LATE stage, i.e, when the kids are to be taught how to REMOVE them in order to get a logically equivalent expression i.e, how to rewrite 5(32)=53+2, rather than train kids FIRST in calculating 5(32)=51=4, and similarly (53)2=22=0 


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