GAHHHH!
DS's 3rd grade teacher sent home some worksheets designed introduce kids to multiplication with the "partial products" method, and then later the "lattice method" ... before ever talking about the standard algorithm.
What a bloody nightmare that was. The teacher was very gracious, though, when I explained that we would be solving problems in the traditional manner, and that, if necessary, my son would take a zero on any tests where those methods would be required.
I couldn't believe it.
That video is superb -- thanks for sharing it here.
