I thought the idea of incremental punishment is good, gradually prolonging the loss of recess time gives teachers and students room to work and improve before giving them a harsh consequence for misbehaving based on the level of misbehavior.
Outlaw "I'm Done!" I LOVE this post from Kady at The Teacher Trap. She makes some really good points and includes suggestions for helping kids change their mindsets about rushing through their assignments.
This falls under task 2 as intrinsic motivation. I think letting students set their own goals is very motivating- especially if it is paired with an extrinsic motivator like a prize if they meet their goal.