<p>my calc 3 prof described it as “concepts based”</p>
<p>That is, it’s not hand-wavy and formulaic problem solving, but it’s definitely not proof-based, either. You ought to be able to understand the concepts well enough to argue your way through problems and justify why things are the way they are.</p>
<p>But no proofs, at least not in lower-division math.</p>