I loved it. It was just the kind of problem my kids need. Today to start math I switched on the video, told the kids we were watching a video and that's all, and played it. They were immediately on board and started doing the next step before I prompted them.
"Ok, what questions can we ask using this video?"
"How many did he start with?"
"How many did each person get?"
"Can I have some gum?"
I listed the (good) questions on the board and said, "Ok, that's your assignment. Go." Then I stopped talking, sat back, and watched the groups work.
I have to say I was impressed. There was a lot of gnashing of teeth and even more too quick too flip answers that they didn't double check, but once they figured out it wasn't as easy as they thought they got to work with an industry rarely seen with, "Do page 267, #2-24 even only."
There were math conversations happening, problem solving, team work, trouble shooting. I loved it.