Education Technology

Algebra II: Sums of Sequences

by Texas Instruments

Overview

Students develop formulas for the sum of arithmetic and geometric sequences and then find the sum of sequences using the formulas developed.

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Key Steps

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    In this activity, students will first perform a numerical process/proof to find the sum of an arithmetic sequence. To do this, they will be entering the sequence in reverse order and finding the sums of the rows. After students develop a formula for the sum of an arithmetic sequence, they will apply the formula.