Watch the video first to answer the question:

https://www.viddler.com/embed/2ce6935b/?f=1&autoplay=0&player=arpeggio&secret=90576092&loop=0&nologo=0&#embedId=undefined

Please give a reasonable explanation and idea:

1. What seems to be the primary reason why Teach for America teachers perform better than many other teachers?

2. What types of training do Teach for America recruits undergo before they are placed in the classroom?

3. Why is a rigorous performance appraisal program a key part of the Teach for America program?