They don't directly explain the Fourier transform but watching them will give you important background that will help in understanding the Fourier transform.
I'm a compsci undergrad currently, wouldnt say I'm bad at math wouldnt say I'm particularly good(thus the question), I can teach myself some math but it takes a lot of time and a lot of stress (which I'm trying to improve).
https://xiph.org/video/
They don't directly explain the Fourier transform but watching them will give you important background that will help in understanding the Fourier transform.