I made red/green flags, that is 1/4 sheets of of red and green construction paper, stapled together, one on every students desk. All day, but particularly during math practice (i.e. homework, but done in class) a red flag meant "I need help on a problem."
With some adult help (special needs para-educators, parents, the reading specialist dropped by during her free period) we roamed the room, flipping the flag from red to green when we arrived to help.
One youngster (fifth graders are 10 years old) required numerous visits, since when I got there I just helped with the next step, scaffolding, if you will.
One of my favorite moments of teaching was when I got to his desk yet one more time and he saw me walk up, he flipped his flag over to green and just waved me off with a flick of his hand. I loved that moment of "I don't need your help and I'm concentrating so go help someone else" moment - a little wave of his hand.
If you wouldn't love that moment, you probably shouldn't be a teacher. I loved my ten years of teaching. The standards based movement, and NCLB in particular, drove me out of teaching.
But I did go from there to graduate school at UO, which is why you get to call me . . .