Level D- Grade 8- The Number System 1 2 3 4 5 6 Standards Skills Concepts Through a Cognitive Sample Activity Included in Included in Particular Demand/ Standard Standard Context Levels of Thinking The Number System Know that there are numbers that are not rational, and approximate them by rational numbers. 8.NS.2 Use rational numbers to In art and architecture, there is a shape called The Use rational approximations of irrational approximations compare the Apply A golden rectangle is one Golden Rectangle. numbers to compare the size of of irrational size of irrational whose side lengths are in the , . What is an irrational numbers, locate them numbers numbers, locate approximation of this ratio? approximately on a number line them diagram, and estimate the value of approximately expressions (e.g., π2). For example, by on a number truncating the decimal expansion of √2, line diagram, show that √2 is between 1 and 2, then and estimate between 1.4 and 1.5, and explain how to the value of continue on to get better expressions approximations. (e.g., Level D- Grade 8- Expressions and Equations 1 2 3 4 5 6 Standards Skills Concepts Included Through a Cognitive Sample Activity Included in in Standard Particular Demand/ Levels Standard Context of Thinking Expressions and Equations
Level D- Grade 8- The Number System 1 Standards 2 Skills Included in Standard 3 Concepts Included in Standard 4 Through a Particular Context 5 Cognitive Demand/ Levels of Thinking 6 Sample Activity The Number System Know that there are numbers that are not rational, and approximate them by rational numbers. 8.NS.2 Use rational approximations of irrational numbers to compare the size of irrational numbers, locate them approximately on a number line diagram, and estimate the value of expressions (e.g., π2). For example, by truncating the decimal expansion of √2, show that √2 is between 1 and 2, then between 1.4 and 1.5, and explain how to continue on to get better approximations. Use rational approximations of irrational numbers numbers to compare the size of irrational numbers, locate them approximately on a number line diagram, and estimate the value of expressions (e.g., Apply In art and architecture, there is a shape called The Golden Rectangle. A golden rectangle is one whose side lengths are in the , . What is an approximation of this ratio? Level D- Grade 8- Expressions and Equations 1 Standards 2 Skills Included in Standard 3 Concepts Included in Standard 4 Through a Particular Context 5 Cognitive Demand/ Levels of Thinking 6 Sample Activity Expressions and Equations
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