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1.NBT.2 Place Value Uncategorized

Mistake Hall of Fame: Cena

Cena, wherever she is these days, deserves a medal. This video is a classic.

Here we get to see how the teacher followed up with the student, so let’s tackle these questions:

  1. What can we say that Cena does know?
  2. What is going through her head as she answers these questions? Where does she go wrong?
  3. What are the teacher’s moves in this clip? What is her strategy for uncovering the student’s errors?