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Grade 8 EALR 1. The student understands and applies the concepts and procedures of mathematics.

Component 1.1. Understand and apply concepts and procedures from number sense.

GLE 7 8 9

1.1.1. Understand the concept Understand the concept Understand and apply of rational numbers of rational numbers scientific notation. (integers, decimals, including whole number fractions). powers and square  Read and use scientific roots of square and exponential  Create a model when numbers. notation. [MC, RL] given a symbolic representation of a  Explain the meaning of  Identify a real-life rational number. [CU, a whole number situation to match a MC] exponent. [CU] particular number written in scientific or  Write the rational  Read and use exponential notation number when given a exponential notation to and justify the answer. model (e.g., number represent large [MC, RL] line, area model, numbers (e.g., 2500 = situation, diagram, 502). [MC]  Use scientific or picture). [CU, MC] exponential notation to  Identify a square simplify a problem. [RL,  Identify and convert number and find its MC] between equivalent root. forms of rational  Illustrate the meaning numbers (e.g., fractions  Identify different of scientific notation to decimals, percents to representations of using pictures, fractions). [MC] rational numbers and diagrams, or numbers. select the best [CU]  Identify prime, square, representation in the or composite numbers. situation (e.g., percent  Read and translate [CU] for sales discount or numbers represented in sales tax, fraction for scientific notation from  Explain the meaning of probability, and calculators and other rational numbers and decimals for money, technology, tables, and give examples. [CU] distance [4.35 charts. kilometers], batting averages).

 Write a squared number.

1.1.2. Understand the relative Understand the relative values of rational values of rational numbers. numbers including whole number powers  Compare and order and square roots of rational numbers using square numbers. physical models or implementing strategies  Compare and order (e.g., like- rational numbers using denominators, changing models or implementing to the same form). [RL, strategies. [RL]