Find where to buy the TI-84 Plus CE graphing calculator in a variety of bold, fun colors.
Download free 90-day trial versions of the most popular TI software and handheld emulators.
Bring a new dimension of learning to your classroom with activities that put math in motion.
Explore teaching strategies for synchronous and asynchronous learning with TI technology.
Drive deeper, more relevant understanding of science in middle grades and high school.
Students will explore logarithmic equations relating to sound intensity and pH.
Students engage in an exploration of logarithmic functions with real applications. Problem 1 involves the exploration of the relationship between the intensity of sound in W / m2 and the corresponding sound intensity level in decibels (dB). Students observe the large range of values for measured sound intensity and learn that logarithmic functions are helpful in working with data involving large ranges of possible values.
A second, similar problem is provided as either an extension or for homework. This activity involves the pH scale and students similarly perform calculations in a spreadsheet. Given pH of a variety of common solutions, students are asked to determine the corresponding hydrogen ion concentrations.
© Copyright 1995-2020 Texas Instruments Incorporated. All rights reserved.