Traditional teacher evaluations -- full-lesson observations, write-ups, and debriefs -- are time-consuming and largely ineffective. As a principal, Kim Marshall found that mini-observations -- short, frequent, unannounced classroom visits, each followed by a face-to-face coaching conversation and brief narrative summary -- actually improved…

The field of mathematics education has engaged in perennial debate about whether transmission-oriented or constructivist approaches to teaching will best help students learn. Yet, both fluency, learned through step-by-step procedural instruction, and the mathematical flexibility that comes from constructivist methods play an important role in…

Advances in technology have made it increasingly easy for teachers to film and share video recordings from their own classrooms, and much research exists highlights the rich learning that can occur when teachers watch and discuss video. Here, Miriam Gamoran Sherin, Jennifer Richards, and Mari Altshuler examine the opportunities for learning that…