Just to clear some things up:
*Yes, this was ' fuckery ' at first
*No, I'm not opposed to new methods of learning
*Yes, I understand it now
Are your children learning this in school? Do they understand it? Or are they using other methods instead?
HERE'S THE HOW TO BELOW
Lattice method starts at about :43
****UPDATE**** Well since this got commented on again, I'll just go ahead and update it and say that BOTH of my dds are doing GREAT with this method. They are much better with lattice versus partial products, which is another one they are being taught.