I think the point is that children should be using their hands to solve maths. It is very important not lose sight of the fact that we learn through different mediums and not suppress one at the cost of other so early in life.
Thts why kdz tlk lk ths thse dyz gotta fit evrythng so I can tweetz. Basic communication skills are going down the drain because all kids do is email, instant message, tweet, and facebook. Pretty soon reading will disappear because Siri will read it for me! As humans we are starting to rely way to much on technology to do things our brains used to do.