most of kipp's students qualify for public assistance.s middle schoolers have graduated from high school. more than 85% of kipp alumni have gone to college. >> those charters are fantastic. i mean, they -- whenever you get discouraged that somehow this can't be done, you know, the kids have had a tough experience, go to a kipp middle school, you know, see those fifth graders, see those eighth graders and see what a transformation it is. >> long hours, a long school year and a demanding personnel system for teachers are the hallmarks of the best charter schools, says gates. but he says the key to their success goes beyond organizational nuts and bolts. >> they are really focused on the kids' values, what counts, how the kid thinks of their future. that is where they really get the win. and then the idea of, okay, let's learn addition and multiplication, let's not disrupt the classroom. that follows from creating that really good environment. >> but while charter schools like kipp have extraordinary results, they've been the exception, not

most of kipp's students qualify for public assistance. of its middle schoolers have graduated from high school. more than 85% of kipp alumni have gone to college. >> those charters are fantastic. i mean, they -- whenever you get discouraged that somehow this can't be done, you know, the kids have had a tough experience, go to a kipp middle school, you know, see those fifth graders, see those eighth graders and see what a transformation it is. >> long hours, a long school year and a demanding personnel system for teachers are the hallmarks of the best charter schools, says gates. but he says the key to their success goes beyond organizational nuts and bolts. >> they are really focused on the kids' values, what counts, how the kid thinks of their future. that is where they really get the win. and then the idea of, okay, let's learn addition and multiplication, let's not disrupt the classroom. that follows from creating that really good environment. >> but while charter schools like kipp have extraordinary results, they've been the exception

. >> the 400 students at the kipp summit academy need that focus.emics and long school days. >> those are the questions. >> i definitely have kids who before they started taking yoga would have a hard time finishing assignments and once they started taking yoga were able to keep their head in the game longer. >> it is not an elective, it is part of the curriculum every day, right? >> right. i made it part of the curriculum because i saw the value in it. very early on. >> since bringing head stand to kipp, state test scores are up. but the benefits stretch far beyond the school day. >> a lot of times i get mad at my brother, my sister, and then just go to my room and do yoga for a while and then go back out. >> i get a clear mind this and helps me reflect on myself. >> what are some of the things that you think about or you look inside yourself for? >> i start thinking if i'm wrong or the reason why am i fighting if i'm wrong, should i apologize. >> simple, yet poignant lessons with a daily impact. and for catherine, proof of the lasting power of yog