CTET PAPER I 2018 · PYQ · Ethno-mathematics · medium
The mathematics used by illiterate shopkeeper—
A.is not useful in the mathematics classroom
B.is very useful in solving all mathematical problems
C.has ambiguity and very low level of correctness in it
D.should be discussed by the teachers in classrooms as an alternate strategy in solving related problems✓ Correct
Explanation
Illiterate shopkeepers often develop sophisticated mental arithmetic strategies through years of practical experience. These informal, culturally-embedded mathematical methods are valuable and should be discussed in classrooms as alternative problem-solving strategies. This validates folk/ethno-mathematics and shows children that mathematics exists in everyday life beyond formal algorithms, enriching their mathematical understanding.
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