I have developed a system of math interventions that leverages Khan Academy and spreadsheets to help students and teachers identify and address skill and knowledge gaps at all grade levels. I lead a PLC of grade 4-12 math teachers and we are seeing a lot of student growth. The system uses course challenges as its primary diagnostic tool and individual student skills reports for tracking student growth. Data are copied from KA and pasted into spreadsheets that do some fancy work and generate reports for students, teachers, parents, tutors, and staff members in other supporting roles. Currently, the single greatest inefficiency in the system is that we have no control over which skills are assessed on each course challenge.
I feel that the ability to customize course challenges, or to simply create assessments from scratch by selecting specific skills (checkboxes) would not only support math interventions in my district but would enable teachers everywhere to use Khan Academy in a wide variety of new and exciting ways.