I applied in-person. The process took 4 days. I interviewed at Prepworks (Miami, FL) in Mar 2018
Interview
There were three days of training. They did one day for math, one for reading, and one for writing. At the end of the training days there was a fourth day which was a skill assessment. If you pay attention during the first three days its pretty easy. the training days are unpaid.
Interview questions [1]
Question 1
Asked about my background with teaching, what to do with difficult students, and how many hours per week I plan on working