By connecting two– and three–dimensional geometry, this article expands a mathematical discussion that third graders provided to the question, “How many different nets can you draw that can fold into a cube?” (Mann 2004, p. 174). The author also makes connections to other platonic solids and to Eüler's formula.

Footnotes

Kyungsoon Jeon is interested in teaching geometry that shows students mathematical connections within and outside the discipline.