8th grade Math Guide

EXPONENTS AND SCIENTIFIC NOTATION

Unit 7

PACING

KEY LANGUAGE USES

February 24 - March 21 (19 days)

EXPLAIN

STANDARDS

Standard 8.EE.1 Know and apply the properties of integer exponents to generate equivalent numerical expressions. For example, 3 2 ×3 –5 =3 –3 =1/3 3 =1/27

Standard 8.EE.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.

Standard 8.EE.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 seafoor spreading). Interpret scientific notation that has been generated by technology.

END OF UNIT COMPETENCY WITH LANGUAGE SUPPORTS

I can know the properties of exponents and explain the process of simplifying an expression with exponents. Language Supports: ● Vocabulary (exponents) DIFFERENTIATION IN ACTION

Skill Building

From Activity 3.2: MLR 1 Stronger and Clearer Each Time. Use this routine to give students a structured opportunity to revise and refne their explanation of the patterns they noticed in the task. Ask each student to meet with 2–3 other partners in a row for feedback. Provide student with prompts for feedback that will help students strengthen their ideas and clarify their language (e.g., “Can you give an example?”, “Can you say that another way?”, “How do you know…?”, etc.). Students can borrow ideas and language from each partner to strengthen their fnal explanation.

Extension

From Lesson 3 “Are You Ready for More?”: 2 12 = 4,096. How many other whole numbers can you raise to a power and get 4,096? Explain or show your reasoning.

RESOURCES

Vocabulary Information about Practice Problems

Practice Test Do not assign # 4 in lesson 10, #2 in lesson 12