Access changes the design brief
A phone-first classroom is not a smaller desktop classroom. The learner may share a device, ration data or return to a lesson after a long gap. Progress has to remain visible and the next step has to feel obvious.
Good learning technology lowers the cost of getting unstuck. It uses clear language, small units of progress and feedback that helps rather than judges.
Technology still needs a human rhythm
The device can deliver content, but confidence often comes from a facilitator who notices hesitation and creates room to try again. The best systems make that human work easier to see and support.