Patterns Fall 1999 Article
 

 

 

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What’s that Sound? Technology Expands Math Curricula

 
This summer, a group of secondary science and mathematics teachers, college methods faculty, and undergraduate students could be observed on the UNO, UNL, and Concordia University campuses measuring their EEG patterns. The participants proceeded to develop Fourier Series mathematical models which closely resembled their brain waves. Using software, the models were then transcribed into musical notation so that the participants could "listen" to the EEG readings. Funded by Eisenhower Professional Development Funds, the "Sound Waves and Brain Waves" workshops were intended to promote the use of mathematics related technology in high school classrooms. The workshop participants plan to form action teams which will present lesson plan ideas to college undergraduates seeking to become secondary mathematics teachers. Further efforts will be made to monitor and promote similar activities in high school classes.

According to Dr. David Fowler, director of the program and Associate Professor of Curriculum and Instruction at UNL, the emergence of new tools such as the software program Mathematica and the TI-92 calculator provided the impetus for the project. Analyzing brain waves gives students important insights into the nature of mathematical modeling. To the eye, EEG measurements appear complicated and chaotic. However, the Mathematica software can sift through the "noise" to identify underlying frequencies. Classroom efforts similar to the workshop activities will help students learn how to apply mathematics toward interpreting data.

Further information about the program may be obtained from the web address http://www.unl.edu/tcweb/Faculty/fowler/fourier/1141MSet.html. Those with questions should contact Dr. Fowler, via e-mail dfowler@unl.edu or phone (402) 472-3347.