Guest post by Anton Mosunov, Math Undergraduate Group (amosunov@uwaterloo.ca)

Back in March I attended the Fields MathEd forum. The focus of this meeting was on research in math education and training of future math educators. A video of the session can be found here: http://www.fields.utoronto.ca/activities/22-23/meforum-Mar
I will share with you three interesting problems that were used by researchers in their studies. What...