# Ch 42: ORELA Middle Grades Math: Triangles

Use the lessons in this chapter to review the principles of triangles to prepare for the ORELA Middle Grades Mathematics exam. Each lesson also includes transcripts and self-assessment quizzes to help you track your progress.

## ORELA Middle Grades Math: Triangles - Chapter Summary

This chapter can help you review the properties and classifications of triangles in preparation for ORELA Middle Grades Math teacher certification exam. The video lessons in this chapter address topics such as:

• Properties of triangles
• Classifying triangles
• Interior and exterior angles
• Identifying similar triangles
• Constructing medians
• Median and altitudes
• Geometric constructions
• Concurrent line properties

The videos in this chapter are taught by experienced instructors who use entertaining graphics and examples that make this review both easy and fun. The videos include embedded tags so you can skip to the areas that may need an extra look, and each lesson concludes with a short multiple-choice quiz that allows you to test your comprehension.

### ORELA Middle Grades Math: Triangles Chapter Objectives

The state of Oregon has replaced this ORELA exam with an NES Middle Grades Math exam. This test is designed to assess not only your math knowledge in a number of areas but also your teaching abilities. The material covered in this chapter on triangles is from the measurement and geometry domain area, which makes up approximately one-quarter of the test.

This is a computer-based test that includes 150 multiple-choice questions; it has a four-hour-and-fifteen-minute time limit. The videos and self-assessment quizzes in this Triangles chapter can not only help you review topics that you may encounter on the test, but also permit you to become comfortable with the format of the computer-based questions.

9 Lessons in Chapter 42: ORELA Middle Grades Math: Triangles
Test your knowledge with a 30-question chapter practice test
Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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