Diagnose before prescribe. Student is lost with only you on a walkie-talkie. You need to know where they are to know what instruction to give. Gaps and misund

Diagnose before prescribe. Student is lost with only you on a walkie-talkie. You need to know where they are to know what instruction to give. Gaps and misunderstandings must be identified to be corrected. It's debugging. This is all very intensive, customized, one-on-one teaching. But there's no reason it can't be automated... in principle.