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Verhoef, Nellie C.; Coenders, Fer; Pieters, Jules M.; van Smaalen, Daan; Tall, David O. – Professional Development in Education, 2015
This study focuses on mathematics teachers' professional development through elements of Japanese lesson study. The teachers designed a research lesson with regard to sense-making of the derivative using the integration of GeoGebra. In the second year of the four-year lesson study project, seven secondary school teachers--from different Dutch…
Descriptors: Foreign Countries, Faculty Development, Mathematics Teachers, Geometric Concepts