Evolving Learning itself to what we learn on how to teach English language

English language learning has evolved in several decades from teaching it as a subject to teaching as a tool in other subjects. Now, can we do the same with other subjects? Can we try teaching our children finance to reinforce mathematics?

Here is something that I found from Peter Watson, author of "Ideas - A History of Thought and Invention, from Fire to Freud": "Instead of learning in school, say the relativity theory or electricity, we should actually be taught it as it happened to the people who discovered it, with all the rivalry, the dead ends and the blind alleys. By doing so, it becomes much more interesting and you don't only have the abstract knowledge what electricity is, but how people came first across the idea of electricity"

Interesting enough the best business schools in the world teach their students through business cases. Can we bring this same methodology to the K12 classroom?