Completing the Square

Author

Texas Instruments

Alignment

Standards Alignment

Textbook Alignment

Subject Area

Math: Algebra II: Quadratics

Level

9-12

Activity Time

45 Minutes

TI Calculator

TI-Nspire™ CX series

TI-Nspire™ CX CAS/CX II CAS

TI-Nspire Version

3.2

Resource Types

Lessons

Format

TNS

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Completing the Square

Activity Overview

Complete the square in an algebraic expression.

Objectives

Students will use algebra tiles to build a geometric model of a perfect square quadratic
Students will recognize the characteristics in the algebraic expression of a perfect square quadratic
Students will complete the square in an algebraic expression
Students will relate the patterns for (x + n)² to (x – n)²

Vocabulary

Perfect square quadratics
Coefficient of the x-term
Constant term

About the Lesson

Begin the lesson by manipulating algebra tiles to build perfect square quadratics and recording the successful expressions. Continue the lesson by finding the patterns in the algebraic representation of a perfect square quadratic. Next, identify perfect square quadratic expressions and then fill in the missing terms of perfect square quadratics. Finally, apply the patterns they found to perfect square quadratics with a negative coefficient in the x-term.

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Lesson Files

Teacher Notes PDF Student Activity DOC Student Activity PDF TI-Nspire Activity TNS

Author

Texas Instruments

Alignment

Standards Alignment

Textbook Alignment

Subject Area

Math: Algebra II: Quadratics

Level

9-12

Activity Time

45 Minutes

TI Calculator

TI-Nspire™ CX series

TI-Nspire™ CX CAS/CX II CAS

TI-Nspire Version

3.2

Resource Types

Lessons

Format

TNS

Report an Issue

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