Education Technology

Science: Add Them Up
by Texas Instruments

Updated on October 26, 2016

Overview

Students explore the total voltage provided by several batteries in a series to a battery-operated device. They graph scatter plots, understand multiplication as repeated addition, and use a pattern to develop a formula. They learn how to develop a formula from a pattern of increasing voltage and graph increase in voltage in the form of a scatter plot.

Key Steps

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    Using a Voltage Sensor and a Vernier EasyLinkTM students place a set of batteries in series and calculate the total voltage.

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    The data is then graphed and the data is modeled with both a regression equation and a manually fit line. Students then compare their line to the regression equation.