Thanks, I'll give it a gander. I've used Khan Academy before, but I didn't take a liking to it really. I'll give it another go!
https://www.math.ucdavis.edu/~linear/
or
http://joshua.smcvt.edu/linearalgebra/
This is also a handy resource to keep around:
https://people.math.gatech.edu/~cain/textbooks/onlinebooks.h...