In order to fully assimilate the fleshy beings into the global super organism proper neural pathways must be deeply established.
With insufficient neural trenching recruits forget their duties and start reading email or xkcd - this is often referred to as ADD.
Repeated time bound exercises providing quick 'wins' while challenging subjects helps establish proper ...
I give up. In more normal talk -
There has been a bit of talk about this in programming circles. Pragmatic Dave coined the term Code Kata. Steve Yegge has his own suggested exercises, and Coding Horror also recommends 'Teach Yourself Programming in 10 Years'
What I'm looking for are simple exercises that could be given to students interested in programming every week or every month which would over time help to establish in them good programming practices.