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Knudsen is an educator who works at the intersection of design and research that addresses teaching and learning mathematics and computational thinking. She aims to improve access to high quality educational experiences for each and every student鈥攁nd their teachers.

Her work has three areas of focus: the practice of mathematical argumentation, 鈥渕aking鈥� as a context for learning mathematics, and curriculum combined with dynamically linked digital math representations to support conceptual understanding. A current project, Visualize Teaching (VisTe) provides math instructional coaches with a toolkit to help teachers learn moves to support argumentation. Another current project, MPACT, uses making and 3D modeling and printing as a way into geometry, spatial reasoning, and computational thinking.聽She is also co-PI on two projects using making in out-of-school settings. Near-future proposals include exploring and developing an AI assistant for math coaches.

In past work, Knudsen led over a decade of research and design of professional development to help teachers learn to engage middle-grades students in deeply mathematical discourse using performance-based techniques. She also led the design of curriculum that integrated technology to support the development of conceptual understanding, with a focus on algebra and proportionality, for several small- and large-scale studies of student and teacher learning.

Knudsen was a high school math and computer science teacher in New York City public schools, where she learned about teaching from the heart and mind. She holds a BA with a focus on mathematics from the Evergreen State College, where she developed her love for both learning and mathematical argumentation.

• Stevens, H. S. & Knudsen, J. (2022). How Teachers Foster Classroom Mathematical Argumentation as a Justice-Oriented Mathematical Practice. The Lighthouse Almanac, The Journal of the Benjamin Banneker Association.
• Bopardikar, A., Knudsen, J., (co-first authors), Silva, C. & Stevens, H. S. (submitted). A coaches鈥� journey from co-learning in a summer institute to year-round coaching. Journal for Mathematics Education Leadership.
• Knudsen, J. & Stevens, H. S., (2022). 3D Making for Mathematics Learning. The Elementary STEM Journal.
• Knudsen, J. (2022). 3D Making as a Context for Learning Math, Spatial Reasoning, and Computational Thinking.聽Hands On!聽Magazine. (Spring 2022).
• Knudsen, J. (2022). Mathematical Argumentation, Open-ended Conjecturing, and Equity.聽Hands On! Magazine. (Fall 2020).
• Shechtman, N., Knudsen, J., Kim, H., Lara-Meloy, T., Michalchik, V. (2019). Menlo Park, CA: SRI International.
• Knudsen, J., Stevens, H. S., Lara-Meloy, T., Kim, H. J., & Shechtman, N. (2018).聽Mathematical Argumentation in Middle School鈥擳he What, Why, and How: A Step-by-Step Guide With Activities, Games, and Lesson Planning Tools. Corwin Press.