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FLORIDA Pre-Algebra Teacher’s Guide Vol. A

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Use this guide to accompany Lesson 2.03, Semester A. Simplify Before Adding or Subtracting LESSON GOALS • Simplify a linear equation by using the distributive property or combining like terms. FLORIDA STANDARDS • MAFS.8.EE.3.7b. Solve linear equations with rational number coefficients, including equations whose solutions require expanding expressions using the distributive property and collecting like terms. PACING One class period, approximately 60 minutes LEARN MATHCAST: SIMPLIFY BEFORE ADDING OR SUBTRACTING Students watch a short video that shows how to use properties of equality to simplify an equation before solving for x. KEYWORDS Students can preview definitions of keywords hyperlinked throughout the lesson. • commutative property of addition • distributive property • equivalent equations • inverse operations • like terms • properties of equality MATERIALS • Reference guide pages 56–59 • practice Activity Book pages X−X • Overview and Toolkit presentations 70 SImpLIFy BeFORe AddINg OR SuBTR ACTINg

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