Activities

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Alignment
- Standards Alignment
- Textbook Alignment
Subject Area
- Math: Algebra II: Trigonometric Functions
- Math: Precalculus: Trigonometry (Triangle and Circular Functions)
- Science: Forensics: Data Analysis
Author

Texas Instruments
Level

9-12
Activity Time

60 Minutes
Device
- TI-83 Plus Family
- TI-84 Plus
- TI-84 Plus Silver Edition
- TI-84 Plus C Silver Edition
Accessories

Sensor - Microphone
TI Connectivity Cable
Unit-to-Unit link cables
Other Materials
- Vernier microphone
- 6 tuning forks of different frequencies
- Soft tuning-fork hammer
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Forensics Case 3 - Name That Tune: Matching musical tones through waveform analysis

Activity Overview

In this activity, students analyze sound waves to calculate the frequency or pitch of musical notes. They use a Microphone to detect the waveform of a musical note. Students calculate the frequency of a musical note from the period of its waveform and use this knowledge to identify the musical notes that make up the combination to a safe.

Key Steps

Students make graphs of musical notes to catch a thief who cracked the sound-based combination of the safe containing valuable jewels. This requires finding the period of the waveforms from the graphs and then calculating the frequency of each note.

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Lesson Files

Alignment

Subject Area

Author

Level

Activity Time

Device

Accessories

Other Materials

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Forensics Case 3 - Name That Tune: Matching musical tones through waveform analysis

Activity Overview

Key Steps

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