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Groth, Randall E. – Mathematics Teacher, 2011
The lesson study model of professional development that originated in Japan is becoming increasingly popular in the United States. At its core, lesson study is a means of bringing teachers together to carry out the process of planning a lesson, implementing and observing it, and then examining it during a debriefing session. The debriefing…
Descriptors: Mathematics Education, Secondary School Teachers, Professional Development, Instructional Improvement

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