I'd like to see this drawn out fully as well.
From what I know:
How - As in questions. Как много, how many, is something you can say, but in my opinion that's a tragedy and you should use сколько. Насколько is used in some positions as how instead of как, when the "how" means "on what level ____", or "to what extent". как is basically "In what way", it pairs with так, "In THIS way"

All the combinations of question and answer words don't make much intuitive sense to me, like "так как", and "как... так и". And I don't know what the other combinations are but they're useful to know because the make really fundamental relationships between ideas.