<p>Let’s see, over the summer before i came to Caltech, i got a copy of Apostol, and started preparing for the Ma1a. After the first week of classes, I realized it was a complete waste of time. </p>
<p>So, my advice would be, take your time and relax as much a you can over the summer. Go visit things, go to Bahamas - I don’t know. But don’t waste your time trying to prepare for the curriculum. Most likely, it won’t help you, and you’ll have plenty of opportunities to work you behind off in the next 4 years, trust me :)</p>
<p>And as for grades, you should take advantage of the first two terms on pass/fail to develop work ethic that will allow you to survive later on.</p>