Zalman Usiskin: Approaching Ten Tough Mathematical Problems for High School Students #NCSM17 April 4, 2017 0
Cathy Humphreys: Letting Go-Cultivating Agency and Authority using Number Talks in High School Mathematics April 4, 2017 0
@AmyLucenta @GraceKelemanic: Routines for Reasoning-Ensuring all Students are Mathematical Thinkers #NCSM17 April 4, 2017 0
