Daniel Mayer:
......
But I am a bit skeptical that we need to have so much of the ground work settled before actually working on the project. Too much planning for a project is like the birth of Athena in which she sprung forth from the
head
of Zeus fully-grown, educated and in full battle armor - what a headache.
I prefer a more organic approach in which the rules are made based on
actual
experience on what does and does not work. Yeah, of course, some basic parameters should be decided before that but those should be minima.
----------- Good advice.
Regarding any textbook project that hopes to impact K-12, the only thing necessary to have is the general framework in pace as a guideline, and possibly a few working examples (existing textbooks) in hand to get a feel for the 'demeanor' of the kind of material that is used 'on the ground' - it's a good starting point.