I'm not sure how long his teachers tried to stop the bleeding, but I couldn't get it to stop either. After a quick trip to his ped, they sent us up to Primary Childrens in case he needed stitches in which case they'd have to sedate him. I ended up paying a HUGE copay for some popcicles and ice cream. If any of you haven't noticed, Tate has some pretty strict eating habits and one of those is nothing cold. It took a lot of begging on my part and some very creative ideas from one of the child life specialists at PCMC (she was a miracle worker, seriously) to get him to put those popcicles in his mouth. I got him to take 2 bites of ice cream and he got all panicky and started dry heaving. I wish I'd gotten a pic of it, the strongest reaction to a food I've ever seen. But finally after 2 hours of popcicle eating, the bleeding stopped so we didn't have to get stitches! YAY! 
He looked like he'd been through something much more traumatic with all that blood and red popcicle all down the front of him. And to make the day that much worse, he broke his glasses. Not anything easily fixable, they are in two pieces. Oh, the adventures we have! :)