He has studied mathematical work, student thinking, and teacher decision - making in geometry classrooms with particular attention to the use of reasoning and proof to solve problems and develop new ideas. (soe.umich.edu)
In 1890, when Russell was his freshman pupil at Trinity College, Cambridge, Whitehead conceived a large scheme of mathematical work, which he pursued for decades. (religion-online.org)
So far we have explored the technical shortcomings of Whitehead's most significant mathematical works, Universal Algebra and Principia Mathematica, and their connections with and implications for his philosophy of mathematics. (religion-online.org)