Describes simple experiments to explore the variables and links to a theoretical approach. Using genuine data, develops an application to the drive mechanism for a lift in a deep mine shaft; poses follow-up questions. (ASK)

Uses the average-monthly-temperature function as an application of the sine wave. Argues that the attractive aspect of gas bill graphs is that they clearly illustrate that sinusoidal curves are useful and meaningful in an everyday context. (ASK)

Presents four related problems that provide examples of ways to include justifications of interesting mathematics in courses taught prior to a geometry course. (ASK)

Demonstrates how fictitious anecdotes, especially humorous ones, can be used to teach statistical concepts effectively and to dispel some common misconceptions in statistics. (ASK)

Explores a birthday-related problem that asks about the probability of having people with the same birthday in a room. Utilizes spreadsheets to work on the problem and discusses related teaching issues. Contains 20 references. (ASK)

Uses the available data about the Titanic's passengers to interest students in exploring categorical data and the chi-square distribution. Describes activities incorporated into a statistics class and gives additional resources for collecting information about the Titanic. (ASK)

Uses everyday situations that students experience, in order to attract and hold student attention and promote understanding of linear inequalities. (ASK)

Illustrates how the Academy Awards can provide an excellent motivational tool in teaching probability and statistics and presents related activities. (ASK)

The study of statistics can be enhanced by using real-world data and problems obtained from the Internet. Uses data on HIV infections in Asian and Pacific Islander females to teach both descriptive and inferential statistics. (ASK)

Describes Kerf bending which is used to produced a curved shape out of plywood. Discusses why Radtke's kerf-cut method yields a circular arch. (KHR)

Presents an activity that focuses on the composition of functions in the context of jawbreakers. (ASK)

Provides a brief synopsis of the development of the National Fire Danger Rating System along with an explanation of how it works and possible ways to use it in a modeling or problem-solving unit in a secondary mathematics classroom. (ASK)

Details a lesson that utilizes trigonometric identities to determine the optimal angle between the atoms of covalent bonds. Generates a proof of the optimal angle for a molecule with four identical atoms bonded to a central atom that has a complete valence shell. (DDR)

Uses a particularly contentious newspaper report that makes a cause-and-effect claim as the basis for discussing the important aspects of statistical understanding. Suggests a hierarchy to help teachers plan for and assess student learning in this area, and closes with a plea for teachers to cooperate across subjects in order to achieve results.…

Describes an investigation that leads to one of the significant contributions that sabermetrics--new approaches to gaining information about baseball from its numerical records--has made to our understanding of baseball. (ASK)