Argument+of+definition+communicative+classrooms

Watch the following two videos showing communication occurring in math classrooms. Working in groups which classroom activity(ies) do you think is/ are more communicative in the sense that Thornbury (2010) suggests.

media type="youtube" key="4lJcQdcCwPQ" width="560" height="315" (from the beginning with the teacher doing the handshake activity)

media type="youtube" key="j-MauNKHnM0" width="560" height="315" (From 4:00 minutes where students are working in the gardens)

Once you have decided as a group, write an argument of definition outlining your decision and add it HERE for the others to see..