Beverly Koester
A variety of activities in which fourth-grade students investigate prisms and pyramids by building models from folded paper and drinking straws.
Robert Femiano
Three types of mathematics problems that are useful in promoting algebraic reasoning in the elementary school.
David Whitin, Phyllis Whitin
How using the familiar "Magic Triangle" puzzle with a class of fourth-grade students contributed to the development of a supportive mathematical community.
R. Edelson, Gretchen Johnson
Classroom ideas for integrating music with the teaching of mathematics.
Susan Ebdon, Mary McGee Coakley, Danielle Legnard
"Mathematical Mind Journeys" is a lesson format that promotes computational fluency through variable practice that relies on mathematical memory rather than rote memorization.