Date: Jan 21, 2013 2:24 PM
Author: Robert Hansen
Subject: Re: To K-12 teachers here: Another enjoyable post from Dan Meyer

I seriously doubt that. Besides, they had a tool with which to check their answers.

Bob Hansen


On Jan 21, 2013, at 11:57 AM, Joe Niederberger <niederberger@comcast.net> wrote:

> My guess is that if only 18 out of 20 children failed to work this problem to a successful conclusion, it was not due to not "seeing the trick". My guess it it had to do with (lack of) tidy record keeping and double checking.