+1 for the Strang videos. He's an amazing lecturer. e.g. in Lecture 1 explains very clearly matrix multiplication in the "column picture" and the "row picture".

+1 for the Strang videos. He's an amazing lecturer. e.g. in Lecture 1 explains very clearly matrix multiplication in the "column picture" and the "row picture". More intuition than you can shake a stick at: http://ocw.mit.edu/courses/mathematics/18-06-linear-algebra-spring-2010/video-lectures/lecture-1-the-geometry-of-linear-equations/ http://ocw.mit.edu/courses/mathematics/18-06-linear-algebra-... This tutorial is also pretty good for geometrical intuition: http://www.cns.nyu.edu/~eero/NOTES/geomLinAlg.pdf http://www.cns.nyu.edu/~eero/NOTES/geomLinAlg.pdf