How to handle class of unprepared students

<p>I used Halliday and Resnick for freshman physics. Most people I knew in those days did so as well. I’m pretty sure it had calculus based problems in it, and since we worked just about everything in that book I’m sure we covered them. But what I remember is that the calculus based problems were rather elementary and the harder problems didn’t involve much calculus. THe difficulties were primarily in conceptualizing and setting up the problem, and maybe using some trig identiites or something like that. At least that’s what I remember. </p>

<p>Of course, when I got to upper division classes, things were a bit different.</p>