Go into the library at lunchtime, stare at the homework, decide to leave it until you get home, stare at it some more when you get home, decide to leave until after dinner, stare at it some more after dinner, decide to leave it till later, repeat every hour until 10pm then rush it in 10 minutes.

That's my plan anyway.

Or, if it's maths with loads of similar questions, only do half of them. And then get the answers wrong. The teacher won't notice.

Well my old maths teacher didn't notice, but she's dumb.