High Flee,

Once I met the Giant Romizowsky: a scientist who wrote many books of
thousand pages and more about educational design. On that day I aggrieved
the man deeply by uttering my suprise that he as a person was not that tall
as I expected. (he is even smaller then I am.)

What I want to say is that even men with great vision like Alan (sorry
Alan)turn out not te be perfect: 

- In the emails you can read now and then that he is not able to put the
right time-stamp on his emails.
- If I or You do this, they call it a mistaken. 
- But having a high status, people think that it cannot be a mistake: there
must be a hidden vision behind that... 
- SO... Allen sends us mesages from the future. (joke email or..?)


Back to a important point in your message:

Working with academic technical students (..), one of the educational tricks
is to ask them to write a tutorial for a 10-year old child, explaining the
subject of their complex research project: It makes often lots of things
more clear for their mentor.... and the student himself!

Could writing tutorials in Squeak....?