Resources for Pre-Algebra Chapter 9: Real Numbers and Right Triangles

In Chapter 9, student find and approximate square roots and classify real numbers as rational or irrational. Students solve real-world problems involving square roots, including problems that use the Pythagorean Theorem and problems that involve special right triangles.

Specific objectives include:

• Find and approximate square roots of numbers.
• Work with irrational numbers.
• Solve real-life problems involving the Pythagorean Theorem.
• Use special right triangles to solve real-life problems.
• Use trigonometric ratios to find the side lengths of triangles.

Online Textbook:

Students were given a yellow flyer that explains how to sign up for eServices so students can use the online textbook. Students will need the following class activation codes:

• 3rd Hour - CLASS1347332
• 4th Hour - CLASS8361810
• 5th Hour - CLASS3156177

Our textbook publisher provides several online resources for students including presentations, tutorials, practice lesson quizzes, and practice chapter tests. Please use the menubar above to explore the online resources for each lesson as part of your regular study routine.

Some of the Extra Resources require external programs such as PowerPoint, FlashPlayer, and Acrobat Reader. Please use the links below if you need to download these applications.