It's a question that touches our ego a little: why are we getting worse and worse in math? The Pisa ranking shows that we are even worse than we were three years ago. In the streets of Lille (Nord), we get out the slate, interro surprise. Let's put a simple problem to passers-by, a price to calculate during the sales. To say so, it creates a wind of panic: 'I don't know how to calculate this'; 'It's a matter of logic that I don't necessarily hav…
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It's a question that touches our ego a little: why are we getting worse and worse in math? The Pisa ranking shows that we are even worse than we were three years ago. In the streets of Lille (Nord), we get out the slate, interro surprise. Let's put a simple problem to passers-by, a price to calculate during the sales. To say so, it creates a wind of panic: 'I don't know how to calculate this'; 'It's a matter of logic that I don't necessarily hav…