Do I need to take PreCalculus or Calculus if I learn some Calculus in Physics?
Yes. All of the science classes apply the skills learned in your math classes. The science teachers review some material and may give you some tips or tricks for completing certain types of problems, but the underlying theory and mathematical connections are developed in your math courses. To more fully understand and appreciate the work you do in your science classes, be sure to take the math classes that complement your science studies.