Ch 16: 4th Grade Math: Angles

About This Chapter

This Angles chapter features short and informative online video lessons. They are designed to develop your 4th grade students' ability to identify and compare various angles. Assess your students' proficiency in working with angles by giving the included lesson quizzes.

Angles - Chapter Summary

The simple video lessons in the Angles chapter can teach 4th grade students to identify straight and adjacent angles. Students can also learn how to use protractors to measure different angles. The online video lessons are usually less than ten minutes long and come with multiple-choice quizzes and transcripts. A chapter examination is included as well to help you gauge your student's mastery of this math topic.

Chapter Lessons and Objectives

Lesson Objective
What is an Acute Angle? - Definition, Description and Examples Instructors explain how to identify an acute angle.
What is an Obtuse Angle? - Definition and Examples Students learn the characteristics of obtuse angles.
What is a Right Angle? - Definition, Formula and Quiz In this lesson, students are taught to identify right angles.
Identifying Straight Angles Instructors provide the definition of a straight angle and teach students to identify it.
Angles of 90, 180, 270 and 360 Degrees In this lesson, instructors demonstrate how to measure angles of varying degrees.
How to Measure Angles with a Protractor The process of measuring angles with a protractor is demonstrated in this video lesson.
Working with Adjacent Angles Students are taught to compare and properly measure adjacent angles.

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

Earning College Credit

Did you know… We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.

To learn more, visit our Earning Credit Page

Transferring credit to the school of your choice

Not sure what college you want to attend yet? has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.