What evidence did you observe in Ms Wessling’s video that her students were becoming thinkers?

After viewing the videos Improving Practice with Sarah Brown Wessling and  Embedded Formative Assessments,  and after reading Releasing Responsibility by Fisher and Frey, discuss the following:

Part 1

Sarah Brown Wessling remarks; “It is not about ways of delivering content as much as it is about ways of getting students to become thinkers; ways for students to be more autonomous.”

• What evidence did you observe in Ms Wessling’s video that her students were becoming thinkers?
• How is this an example of the teacher assessing FOR learning?