An MIT initiative called “OpenCourseWare” makes virtually all the school’s courses available online for free — lecture notes, readings, tests and often video lectures.

Through OpenCourseWare, educators upload their lectures and learning materials so people worldwide can learn from them. According to the makers of “MIT: REGRESSIONS,” Strang’s lectures have been ...

The K-12 contributors include MIT professor Gilbert Strang, whose lectures on linear algebra are among the most popular on OpenCourseWare site. Mr. Strang has taught at MIT since 1962 and written ...

MATHEMATICS 18.06: LINEAR ALGEBRA M.I.T. (ocw.mit.edu) Linear algebra is rarely described as popular, but rarely does a mathematician portray it in a different, illuminating light.