Vanderfin wrote:
I have some strong gestures for both area and perimeter. They are very complicated to type down, but I can send you jpeg images of what they look like along with a "power pix" used in conjunction. My email is on the board of directors tab...I'm the second profile from the top.
I'd be very interested in those gestures as well. I'm doing area and perimeter in a few weeks.
As for getting it to a pen-and-paper skill, I have a few ideas. First, when you are teaching the gesture and having them repeat the formulas, make sure you Teach-OK it too, so that they are hearing it in as many ways as possible. Picture this: you say it, you have the class say it with you, then you Teach-OK, so that they hear it from their partner, then you Switch, so they say it back to their partner. Then you target one of your weaker students to repeat it to the class. Say "think you can do it?" If they say yes and fail, give them an "It's cool" and repeat all of the above before calling on another weak student. If they succeed, ten finger woo! This is the routine I use for most concepts with Whole Brain Teaching.
The other thing you might think about is taking a more inquiry-like approach, having them do area the long tedious way by counting squares in a grid over and over until they realize that just multiplying would be easier on their own. Same goes for perimeter (make them count the lengths on the edge and discover the formula on their own eventually). Learning through inquiry internalizes the logic behind the formulas better, and makes them feel like they're cheating by using them! It's always good to feel like you're cheating. I know I do when I use Whole Brain Teaching.