<p>The textbook used at UC Berkeley, as well as a lot of other UCs and CSUs, for the three semester Calculus sequence for Math, Physical Science and Engineering majors is “Calculus, Early Transcendentals” 6th edition by James Stewart. It is a very long and comprehensive text that has numerous problems after each section of a chapter as well as at the end of each chapter itself. The problems range from fairly straightforward through medium difficulty and some that are extremely challenging. I would imagine in 1B most of the problems assigned would fall in the straightforward to medium difficulty range while in H1B you would get a lot more of the very difficult ones.</p>
<p>In 1A and 1B offered by the UC Berkeley Extension, which my son is taking online over the summer, they allow you to take a version of the course tailored to either the 6th edition that was published in 2008 or the 7th edition that the publisher, seeking to make as much money as they can from students, put out in 2011.</p>