In this 3-part activity, students use paper-folding and an interactive computer sketch to develop the equation of a parabola given the focus and directrix.
Wendy B. Sanchez and David M. Glassmeyer
When visitors enter the High Museum in Atlanta, one of the first pieces of art they encounter is Physic Garden, by Molly Hatch (details in photographs 1 and 2). Physic Garden consists of 456 handpainted dinner plates arranged to form a rectangle with 24 horizontal rows and 19 vertical columns and extends from the floor to the ceiling of the first floor. The design of the “plate painting” was inspired by two mid-18th-century English ceramic plates from the museum's collection (photograph 3).
Michael J. Bossé, Kathleen Lynch-Davis, Kwaku Adu-Gyamfi, and Kayla Chandler
Teachers can use rich mathematical tasks to measure students' conceptual understanding.
Heather Lynn Johnson, Peter Hornbein, and Sumbal Azeem
A computer activity helps students make sense of relationships between quantities.
Maria L. Hernández, Rachel Levy, Mathew D. Felton-Koestler, and Rose Mary Zbiek
Ideas from the GAIMME report illustrate how teachers can engage students in the modeling process.
Michael A. Jones
Short items from the media focus mathematics appropriate for classroom study.
Readers comment on published articles and share their mathematical interests.
Diana Cheng and David Thompson
Labyrinths inspire questions about measuring path lengths and representing patterns.