The Cycle of Inquiry and Justification was delineated as an essential concept for High School Mathematics (NCTM, 2018). After spending three years observing this cycle in classrooms, we identified the transition from conjecturing to proving as a key site for conceptual obstacles. These obstacles and strategies for overcoming them are explored. This presentation was part of the NCTM 100 Days of Professional Learning.
Cirillo, M. & Hummer, J. (June, 2020). Supporting students’ pathways through the cycle of inquiry and justification. [Webinar] In 100 Days of Professional Learning. National Council of Teachers of Mathematics. https://nctm.wistia.com/medias/f04d5unjxo