This! And it is not just for Maths. Every subject taught has this problem. Another problem similar to this issue is very well articulated by Salman Khan of Kh

This! And it is not just for Maths. Every subject taught has this problem. Another problem similar to this issue is very well articulated by Salman Khan of Khan Academy here: https://www.ted.com/talks/sal_khan_let_s_teach_for_mastery_not_test_scores https://www.ted.com/talks/sal_khan_let_s_teach_for_mastery_n...