here at williamsburg collegiate, 100% of the sixth, seventh and eighth graders scored proficient or advanced compared to 75%. >> 100%? >> 100% in grades six through eight. so we are creating a new performance gap. our students are outperforming the average white student. >> wow. >> using tests only sparingly, at williamsburg, all about testing, all the time. >> so if you load those upside down like this. >> yes. >> perfect. >> so now we have a bunch of raw data that is going to go into a spreadsheet. this master spreadsheet has every grade for every subject for every kid in the school. >> it's amazing. it's incredible. it seems like you guys are analyzing everything. >> yeah. i think we definitely as an organization and as a school. >> almost obsessively. obsessively. >> i would say that is accurate.