The first step was a group interview where they asked all to explain an achievement we had in education, the second step was an individual interview, finally followed by a sample lesson

I went through the entire recruitment process, from meeting with a corps member to the written application to the various stages that followed. The first round is the application, then you may or may not get a phone interview, which consists of behavioral questions. Then if you make it past that, you're invited to the day-long interview where you present a lesson plan to your fellow students, debate an issue (almost like a group case interview), and then you go on for 1:1 interviews. The 1:1s are weird because they actually cite things from your application. And at least in my interview, they focused on something I had done ages ago and not really asked about anything that I have done in more recent years. They also quote from your essay and ask you to comment on specific quotes. Overall, it was a lot of work, but I guess that gauges your interest in the job.