The Conversation – Anthony Bonato 
Learning rules and formulas in mathematics is an essential skill, as you need a foundation from which to build. Children need to know what the product of 6 and 8 is without having to rediscover it every time. At the same time, children gain critical problem-solving skills via discovery. They get to think more deeply about the subject. No one would teach language skills by only teaching grammar. You teach children the rudiments of grammar to get them speaking, reading and writing. (more)