It's also possible that the teacher, or the method, is simply a bad fit. I watched some of the SICP lecture, and they, and the book, are a bad fit for me, partl

It's also possible that the teacher, or the method, is simply a bad fit. I watched some of the SICP lecture, and they, and the book, are a bad fit for me, partly because I lack much of the math background. I'm sure there are other people for whom they're perfect.