Agreed. Most decent teachers in school incorporate some experimentation or explanation of "How do we know that...?" They often discuss who is crediting with a d

Agreed. Most decent teachers in school incorporate some experimentation or explanation of "How do we know that...?" They often discuss who is crediting with a discovery, with an explain how the person made the discovery. But unless you delve deep into a particular field, the amount of facts students need to learn will far outweigh the ability to explain how we came to learn each and every fact.