#### Student Resources

Irrational Numbers

Supports the following Standards of Mathematical Practice

• 2 Reason abstractly and quantitatively.
• 5 Use appropriate tools strategically.
• 6 Attend to precision.
• 7 Look for and make use of structure.
• 8 Look for and express regularity in repeated reasoning.

### Mathematics, Chapter 6, Irrational Numbers and Rounding Off

by Siyavula Siyavula

Chapter 6, Irrational Numbers and Rounding Off comes from the FHSST (Free High School Science Texts) Mathematics textbook. FHSST is a project that aims to provide free science and mathematics textbooks for Grades 10 to 12 science learners. The project was initiated by young South African scientists, and now brings together scientists from around the world who are willing to contribute to the writing of the books.

This resource is part of the FHSST Mathematics collection.

CONTENTS

Chapter 6: Irrational Numbers and Rounding Off - Grade 10

6.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

6.2 Irrational Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

6.3 Rounding Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

6.4 End of Chapter Exercises . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Curriki Rating2

### Irrational Numbers & the Number Line

by Allen Wolmer
Using a compass and the Pythagorean theorem, students construct the irrational numbers on the number line.

Supports the following Standards of Mathematical Practice

• 5 Use appropriate tools strategically.

• 6 Attend to precision.

Curriki Rating1

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