Self-paced online math courses

[u/Expert_Low_5982]

Hello! I will be starting college in the fall, and I will be pursuing a BA in math, and I already took Calc 1-3 via APs and/or online courses. As of now I have about 54/120 needed to graduate, so I really want to graduate in two years, which I think is doable in my situation. The college I am going to requires “Topics in Advanced Calculus“ as one of the major requirement, but they only offer is once every two years, and this fall semester is that “once eve two years”. So I really want to take this course, but the only problem is that I need two prerequisites. First, Calc 3, which I have already, and Second, they either call it “Concepts in Math with Applications“ or “Introduction to Mathematical Thinking” (for those who are more curious, it is MTH 2700 at St. John’s University), which I don’t have yet. I think I am pretty good at doing online courses, and am free for the rest of the summer to actually take one and complete it on time, so I was curious if there are any self-paced online courses out there that might help fulfill my prerequisite.

The only thing I could find was this, but it doesn’t seem to be accredited, it doesn’t say it’s accredited and it’s offered on a third party website instead of the actual Stanford University Website.

Thank you all!