Allen WolmerSandy Springs, Georgia, US,

March 17, 2015

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Irrational Numbers

- Mathematics > General
- Mathematics > Arithmetic
- Mathematics > Number Sense & Operations

- Grade 6
- Grade 7
- Grade 8
- Grade 9
- Grade 10

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Irrational Numbers

Teacher Resources from Howard County Public School System: "In this unit, students will know that there are numbers that are not rational, and approximate them by rational numbers. Students should know that numbers that are not rational are called irrational and understand that every number has a decimal expansion. For rational numbers students should show that the decimal expansion repeats eventually. Students should also use rational approximations of irrational numbers to compare the size of irrational numbers and approximately locate them on a number line diagram. "

Supports the following Standards of Mathematical Practice

• 2 Reason abstractly and quantitatively.

• 7 Look for and make use of structure.

• 8 Look for and express regularity in repeated reasoning.

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Worksheet, Formative Assessment, and Activities from orgLib.com

Supports the following Standards of Mathematical Practice

• 2 Reason abstractly and quantitatively.

• 7 Look for and make use of structure.

• 8 Look for and express regularity in repeated reasoning.

These worksheets can be used in multiple modes. See this page for how it works: http://www.orglib.com/howitworks_s.html

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Curriki Rating**'C'** - Curriki rating C**'C'** - Curriki rating

8.NS: This lesson unit is intended to help you assess how well students are able to distinguish between rational and irrational numbers. In particular, it aims to help you identify and assist students who have difficulties in: • Classifying numbers as rational or irrational. • Moving between different representations of rational and irrational numbers.

Supports the following Standards of Mathematical Practice

• 2 Reason abstractly and quantitatively.

• 7 Look for and make use of structure.

• 8 Look for and express regularity in repeated reasoning.

Member Rating

Curriki Rating**'C'** - Curriki rating C**'C'** - Curriki rating

8.NS: This lesson unit is intended to help you assess how well students reason about the properties of rational and irrational numbers. In particular, this unit aims to help you identify and assist students who have difficulties in: • Finding irrational and rational numbers to exemplify general statements. • Reasoning with properties of rational and irrational numbers.

Supports the following Standards of Mathematical Practice

• 2 Reason abstractly and quantitatively.

• 7 Look for and make use of structure.

• 8 Look for and express regularity in repeated reasoning.

Member Rating

Curriki Rating**'C'** - Curriki rating C**'C'** - Curriki rating

Supports the following Standards of Mathematical Practice

• 1 Make sense of problems and persevere in solving them.

• 2 Reason abstractly and quantitatively.

• 6 Attend to precision.

• 7 Look for and make use of structure.

• 8 Look for and express regularity in repeated reasoning.

Member Rating

Curriki Rating**'C'** - Curriki rating C**'C'** - Curriki rating

Supports the following Standards of Mathematical Practice

• 1 Make sense of problems and persevere in solving them.

• 5 Use appropriate tools strategically.

• 7 Look for and make use of structure.

• 8 Look for and express regularity in repeated reasoning.

Member Rating

Curriki Rating**'C'** - Curriki rating C**'C'** - Curriki rating

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