Hello, I am working through the MIT OCW courses 8.01 and 8.012. At my university we already learned about tensors in the first mechanics course but I don't really understand them completely. Therefore I am searching for some MIT OCW course that covers tensors. I'd be glad at any help. Apart from that I've got some more questions: 1) When are tensors ordinarily covered in physics? 2) Could anyone give me some textbook recommendations for tensors?