Ok, this is a fun problem....
Let's see, you say:
Hmmm...
So what I see here is not a matter of motivation, but a matter of beating the boredom that schoolwork causes due to the fact that you see that it is so simple to do that you just choose not to do it at all...
Is that how you see it?
Now let me ask you, you say that you seek for quality, not quantity, but it seems to me that the little bit of work that you are given is not being done to a great quality.
Challenging yourself to do something might work for the first couple of seconds, but human nature will eventually get the better of you, and you are going to start taking short cuts and end up on the same place where you started.
Here’s my advice, and do please take it as seriously as you can.
Instead of challenging yourself, challenge some other being of your class who you know by good chance that you are smarter than.
Make a bet:
“At the end of the year, whoever gets the better grades gets $10”
(increase the amount depending on how much “motivation” you want ^_^)
Believe me, even though many will try to hide it, money can sometimes be all the motivation you need…
Eventually, start building the habit of studying, and as the years pass, you will eventually find that making your studies your source of income will increase your want to make a better job each time…
I hope that you find this useful, for it is the only thing I can think at the moment that would aid your situation…
And hopefuly, you will eventualy start doing your job as a form of habit, and eventualy you will start losing the need to bet.
:thumbup: