Seth Cutler is a Professor at California State Northridge and a Mathematics coordinating instructor for LAUSD and has been teaching effectively for many years.  Here is the link to enjoy his Introduction to Multi-Digigit Multiplication, a subject that challenges 3rd Graders everywhere. It is called Elena’s Patterns and you can find it on You Tube hereScreen Shot 2015-02-01 at 8.58.35 AM