I have more than 20 years of experience in the design, implementation and evaluation/research on online learning but I do not give unsolicited advice here for the shift to online learning in the current crisis, because of the following reasons:

Technology-enhanced learning is never a one-size-fits-all approach and it needs a contextualized approach in which the needs of the target group, the sociocultural context, the means, methods and affordances of technologies and last but the capacity is balanced in a good design.

To take informed decision on all these aspects, knowledge of education, psychology and computer science is needed. Combing the state of the art of these fields, TEL researchers and practitioners are seeking „viable“ solutions that work best in the context given.

Because of this complexity, it would be naive to assume that a simple list of „tipps and tricks“ is of any value given the large differences between contexts, target groups, technologies and socio-cultural environments.

What could be right in one context, could be the absolute failure in another context and vice versa. Be cautious if you hear that you just need to apply method A or use technology B. "For every complex problem there is an answer that is clear, simple, and wrong." (H.L. Mencken)

A spontaneous shift to full online learning is only possible on the basis of the knowledge, skills and competences each individual has in these subdomains. But it is the best that we have at the moment so I would encourage all „solutions“ to let learning take place right now.