Exactly. In my experience tutoring 3 younger siblings, the problems they've had with trig and calculus are caused by a lack of mastery of basic algebra. I thin

Exactly. In my experience tutoring 3 younger siblings, the problems they've had with trig and calculus are caused by a lack of mastery of basic algebra. I think everyone would be much better off if they left high school with a mastery of basic algebra and left trig and calculus for College (for most kids).