In this video, Dr. Kleimann has an informal conversation, via Google Hangout,  with experts Drs. Kathryn Chval, Barbara Dougherty, and John Lannin from the University of Missouri-Columbia.   The Panel shares their insight and perspective on using fair sharing activities and also on selecting manipulatives and using them effectively in fractions instruction.   The panel refers to the research of Susan Empson and Nancy Mack during this discussion. 

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