Dan Meyer

Dan Meyer (Daniel Meyer) is an American mathematics educator known for his work on improving math instruction and for popularizing “3-Act Math” tasks—lesson structures that use a compelling scenario to spark student questions, guide modeling, and support discussion. He taught high school mathematics before moving into broader curriculum and professional-learning work. Meyer has written and spoken widely about making classroom math more engaging, emphasizing reasoning, estimation, and real-world problem solving. He has also worked at Desmos, the graphing-technology company, contributing to tools and resources used by teachers and students. His ideas have influenced contemporary conversations about math pedagogy and task design.