# TechMAP - Sound - Teacher Edition

### Author: Henk Vanderkooj & Tom Goris

This module examines the intensity of sound transmitted through materials such as a glass window. The primary mathematical topics of this module are exponents and logarithms.

**TechMAP**

Covering topics from Algebra I to Precalculus, TechMAP modules show high school students real, immediate uses for mathematics.

**All students MUST PASS the same standardized tests in order to graduate and succeed. All 22 TechMAP modules show tangible, real-world applications of the material on these exams, driving home required math skills.**

**The mathematics required by state tests is taught in algebra and geometry courses, but for many students this is not enough. TechMAP modules demonstrate these skills in vocational fields; they help reinforce existing mathematics courses through actual career activities. These modules are self-contained with exercises, teacher notes, handouts, etc., and can be used individually or together. Each module takes one to three weeks of classroom time.**

**A builder finds the slope of a roof the same way an**

algebra student finds the slope of a line.**A farmer selling her wheat must decide between several**

grain elevators in different locations. She uses conic

sections and parameters on elementary models to make

her decision.**An exploration into the packaging industry reveals area**

formulas.**GPS devices are everywhere today, and our module**

explains how they actually work; students become well-versed

in spherical geometry, time differences, and codes.**Carpenters work with shapes and relationships every**

day, and in our modules we explore circle relationships,

differential equations, linear regression, and more.

#### Mathematics Topics:

#### Application Areas:

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