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FLORIDA Pre-Algebra Teacher’s Guide Vol. A

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LESSON GOALS • estimate a very small or very large quantity by expressing it as the product of a single-digit number and a positive power of 10. • Determine units of appropriate size for real-world measurements of very large or very small quantities, using scientific notation. • Solve real-world problems involving scientific notation. • Solve real-world problems involving two very large or two very small quantities by determining how many times greater or lesser one is than the other. FLORIDA STANDARDS • MAFS.8.EE.1.3 Use numbers expressed in the form of a single digit times an integer power of 10 to estimate very large or very small quantities, and to express how many times as much one is than the other. • MAFS.8.EE.1.4 Perform operations with numbers expressed in scientific notation, including problems where both decimal and scientific notation are used. Use scientific notation and choose units of appropriate size for measurements of very large or very small quantities (e.g., use millimeters per year for seafloor spreading). Interpret scientific notation that has been generated by technology. • LAFS.68.WHST.1.1d. establish and maintain a formal style. PACING One class period, approximately 60 minutes MATERIALS • reference guide pages 42−48 • Practice Activity Book pages 25−29 • Overview and Toolkit presentations KEYWORDS Keywords, such as distributive property, like terms, and power of 10, are hyperlinked throughout the lesson for students to preview. Problem Solving with Scientific Notation Use this guide to accompany Lesson 1.12, Semester A. PrOBLeM SOLvINg WITH SCIeNTIfIC NOTATION 53

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