he was an english lerner himself, so he taught the class , and he had so much success it went through that metamorphosis, so they saw the scores were declining after two straight math scores, they decided to use to try this program. and so it's a program that teaches teachers to use a uniform approach to math instruction and good teaching practices. the teachers wanted help with teaching math, because many elementary teachers are good at english language arts and a lot of them shy away from the math so what this program does is it teaches them how to teach in a uniform way so that if something is taught in one class it's taught the same way vertically and laterally so that the children are seeing the same type of instruction every time they see it taught. i went and looked at it and as a former master teacher with a bachelor's in mathematics, i was overwhelmed with how well it was done, how well it was received by the students. and after a half year of using it they went up 7.5% proficient in mathematics, another 20 students were proficient. so because of all of that research and the