Hello all. I recently graduated from high school, and will be attending Penn State (not the Ivy League school, that's UPenn) in the fall. I plan to major in physics with the intent to pursue a PhD. During my senior year, I took an honors physics course and I received a B+ final average. However, I'm not sure that my capabilities were accurately measured, seeing as I got off to a rocky start in the class and improved progressively. Nevertheless, I am delighted to say that with much hard work, I scored an A+ on the final! Anyways, I was wondering what would be most beneficial to the success of my plans in the long run. One should note that I am behind in my study of mathematics; I took precalculus my senior year (94 final average), however, I have yet to learn any calculus. My physics course covered mechanics and some E&M (my understanding of this field is tenuous since my teacher covered those chapters in a rush). Originally, I was planning on studying Single Variable Calculus this summer from MIT's open course ware although that would only be one semester of math. The other options are to study the Mechanics I course taught by prof. Lewin (again, MIT OCW), or to learn as much physics as I can from Susskind's theoreticalminimum.com which aims to instill a fundamental understanding of the areas of modern physics and its mathematics. Granted, I am not limited to these options so if you feel there is a choice that would benefit me more in the long run - by all means, please let me know. Also, if you have any advice that pertains to achieving a PhD, or careers in research/academia please enlighten me. Any and all help is appreciated.