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FLORIDA Pre-Algebra Teacher’s Guide Vol. A

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LESSON GOALS • convert a very small or very large number to scientific notation. • convert a very small or very large number written in scientific notation to standard form. • Interpret scientific notation that has been generated by technology. 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. • MAFS.K12.MP.5.1 Use appropriate tools strategically. PACING One class period, approximately 60 minutes CONTENT BACKGROUND Scientific notation was developed to represent very large and very small numbers. A number in scientific notation is written as a product of two factors, a number greater than or equal to 1 and less than 10 and a power of 10 written in exponential form. Students will use their previous experience with exponents to develop their ability to convert numbers between scientific notation and standard form. MATERIALS • Reference Guide pages 27−29 • Practice Activity Book pages 17−19 • Overview and Toolkit presentations KEYWORDS Students can preview definitions of keywords hyperlinked throughout the lesson. • power of 10 • scientific notation • standard form Use this guide to accompany Lesson 1.08, Semester A. Scientific Notation 34 ScIeNTIfIc NOTATION

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