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November 2006, Volume 100, Issue 4

FEATURES

President's Choice: Graphic Methods for Instruction in Data Analysis
Walter Szetela, Ian Beattie
A reprint of the original article published in April 1991. The article describes application of box-and-whisker and stem-and-leaf plots in analysis of common life data. Data were observed, collected, organized, and analyzed by authors, but those activities could be done by students, some of them as early as sixth and seventh grade.

Maximizing the Fit of a Box Spring Mattress up a Stairwell
David Buhl, Michael Morissette, Jeffrey Wolff
A class investigation into the mathematics of determining the maximum size of a box spring mattress that could be carried up a stairwell. The Geometer's Sketchpad was used for the problem exploration in order to help avoid common mistakes when deriving the mathematical model. The numerical solution was described using graphical method.

How Far Up Am I? The Mathematics of Stadium Seating
Rebecca McGraw, David Romero, Robert Krueger
A lesson in which students develop understanding of linear functions investigating the height of the football stadium bleachers in relation to the given row. Students collect data related to their stadium seats and use this data to create tables, draw graphs, and derive equations. Whole class discussion concludes this activity.

Using Simulations in the Mathematics Class
Thomas Santulli
Student activities involving simulations with dice and real world situations that have clear meaning for students. Simulations of four different probability problems are analyzed and proposed for use.

Country Data Project
Henry Kranendonk
The article describes a six week program developed for summer school class of 8th grade students with low achievements. The program targeted deficiencies in interpreting information from graphs and tables, working with percents and constructing responses to open-ended tasks. Activities were designed around data obtained from the United States Census Bureau. Analyzing, interpreting and comparing population data from 16 countries  students develop understanding of targeted topics and connections to an understanding of selected countries of the world.

Building a Career Mathematics File: Challenging Students to Find the Importance of Mathematics in a Variety of Occupations
Lori Keleher
The article describes a system of occupational problems designed to help students discover connections between mathematics and life environment. It provides recommendations on what, how, and why regarding to building of own classroom career mathematics file. Sample problems and assessment rubrics are offered and discussed. Student's activities could be span through the academic year.