Development of Creative Commons licenses

[Daniel Carrera <dcarrera AT math.umd.edu>]

Greg London wrote:

> I'm more than a little confused since I thought NC prohibited ANY
> transaction that involved money.

I've been meaning to ask a very similar question. Again, pertaining NC and 
education. I have a friend who is making teaching materials under the 
BY-NC-SA license. He doesn't want people selling the teaching materials. 
But he's happy with teachers who get paid for teaching using this material 
in the classroom. In fact, that's his primary target group.

How does the NC clause affect his work? Are teachers allowed to earn money 
teaching while using his work as long as they don't sell the work itself?

Is there a more suitable CC license for him?

Cheers,
-- 
Daniel Carrera          | I don't want it perfect,
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