Lesson 6: Measuring Angles that Don't Start at Zero

30 Minutes

Mrs. Ashlee Deduijtsche

Instructions:

Watch the video on how to use a protractor. You will need to use a protractor for this lesson, if you do not have one you can print out the paper protractor. The video will show you examples of different types of angles that we have gone over on your vocabulary sheet. You print out the vocabulary pages on the resources tab, if you haven't already done so.

The video on measuring angles will help you complete the worksheets. The video will not go through the worksheets, but the information will help you.

Measuring Tricky Angles Worksheet - Watch the video on how to name angles with a vertex and ray and complete the worksheet.
Remember when finding the measure of an angle that doesn't pass through 0, you have to find the difference and subtract between the two rays. Use the information from the video to find the measure of the angles.

Ocean Angles Worksheet - Instead of using letters for the angle name, you will see the angles are names using ocean animals. You will do the same thing as before to find the measure of each angle.