4 ms·
To the question "what is 2 + 3" a French primary school pupil replied: "3 + 2, since addition is commutative". He did not know what the sum was equal to and cou
by Koshkin 7y ago
To the question "what is 2 + 3" a French primary school pupil replied: "3 + 2, since addition is commutative". He did not know what the sum was equal to and could not even understand what he was asked about!
https://www.uni-muenster.de/Physik.TP/~munsteg/arnold.html https://www.uni-muenster.de/Physik.TP/~munsteg/arnold.html
- agumonkey 7y agoTo be honest, what he's criticizing is also what is lacking in post-primary school math education. The mechanical reduction (3 + 2 -> 5) leads to a road block when you start thinking into solving equations.. because there's no single path of reduction. You need to see the formulas as material you can transform in your mind.