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Introduction to Geometric Sequences

Activity Overview

Students graphically analyze geometric series using graphs and consider the effect of the value for the common ratio and first term using sliders.

Key Steps

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    Students will explore geometric sequences graphically and numerically by varying the values of the common ratio. Clicking on the up or down arrow of the minimized slider while viewing a split screen of a graph and a spreadsheet makes this a dynamic activity.

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    Changing the values of both of the variables, first term and common ratio, of a geometric sequence gives students a deeper understanding of their behavior. A spreadsheet of the terms is available on page 3.2 to investigate the behavior numerically.

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