How many digits for approximate?

Xavier Bordoy

Keywords

"implementació a l’aula" "bitàcola" "aproximació" "males pràctiques"

This week I said to my students “how many digits do you use to approximate non-exact square root?” Almost everyone said 2. Why? They did not know. My opinion it’s because math teachers repeadely told them without any reason… #log #classrroom #badpracticing