Arne Duncan Wants to Hear From You - SchoolBook Teachers: Arne Duncan, the United States Education secretary, wants to know what you think. On Twitter, he wrote: Arne Duncan ‏@arneduncan Teachers: What is one positive lesson you learned from another teacher this year? #teachtalkpositive So far he's hearing a variety of responses, including these: Sarah ‏@comicalsneakers: Bolster, bolster, bolster! Punishment has nothing on encouragement. Enriqueta Turanzas ‏@EnriquetaT: Endearing patience, lovely collegues where I teach ESL Michael Rentz ‏@michaelrentz: Most effective group size for projects is 3. New York City teachers, add your voices. Tell it to Twitter or tell us.