I think we need to separate instruction, student work, and assessment. Students should be able to receive instruction in multiple ways (1on1, group, watch videos), do their work with something like TAs, and be assessed at their own pace.
Japan is starting to see to super-star teachers that parent pay for. Why do we always need a teacher to provide direct instruction in the classroom? Why can't we reward the best instructors, like Kahn, by having kids be instructed that way? The reason is because instruction, work, and assessment are not separated now.
I wish there were more experimentation in education, but since everything is a big ball of wax paid for with property taxes, there's a lot of reluctance for anyone to experiment with their kid, and since it's all or nothing, there just are minor experiments in the classroom
We need tech to find a way to scale the classroom and deliver it cheaply to students, and I think we need a separation of concerns in order for that to happen.