Esther Song Briefly Discusses the Focus of This Article
During the COVID-19 pandemic, the very landscape of classroom teaching has converted to completely digital
Each month during the past year, two invited authors have reflected on an important mathematics education topic from perspectives of either “Then” (the past) or “Now” (the present with an eye toward the future). As NCTM's 100 Year anniversary comes to an end, the December issue's Centennial articles will be the last in this series.