Discussion your impressions: what stands out to you as interesting or problematic and why?

Follow the link below and read the article about Master-based learning. Discussion your impressions: what stands out to you as interesting or problematic and why? How does this fit into the conversation we have been exploring about education? Would like this kind of classroom? Be specific use examples. Minimum 250-words.

https://www.nytimes.com/2017/08/11/nyregion/mastery-based-learning-no-grades.html