<p>I still have the textbook for Honors Multivariable way back when at BC. It’s interesting to compare it to a modern textbook - the old textbook had very few practical applications. The modern textbook is chock full of them. Class went like this: review homework proofs, do the lesson consisting of proofs, assign homework.</p>
<p>Students should see proofs in high-school in geometry and precalculus classes so they should have some familiarity with them. If they didn’t get proofs in high-school, then they may be at a big disadvantage.</p>