Offer ONE higher eduction tax break (I'd go with the tuition and fees deduction capped at $1,000 PER CREDIT myself,

Yeah - cause "credit" is consistent from one institution to another.
< /sarcasm >

I've been involved with one institution that's on quarter system (credit is roughly 1 hour/week * 10 weeks), another on semester system (credit is roughly 1 hour/week * 15 weeks) and another where they don't even use the term "credit", but rather "unit".