speculative background about where learnzillion started from. so, i was a principal at the school in the public charter school in washington, d.c.. and during that time as principle, we were seeing some really good gains in terms of our student learning. and i attributed that to two things. one was just as talked about in terms of democracy we've recruited amazing teachers that worked incredibly hard to read one of them is in the second row, our fourth grade literacy teacher, and the second is that we paid attention to the data so we were deliberate about looking at where students strengths were and where their weaknesses were and been thoughtful about how we would address the weaknesses, and was in that effort that the idea for learnzillion and urged because i was frustrated that as we got better and better analyzing the data it did not seem that we were getting as good at turning out those insights into very targeted action. both in terms of teachers and in terms of parents. in terms of teachers, the teachers still have a curriculum ahead of t