Exploring Types of Angles for 4th Graders

What tool is recommended for measuring angles?

• Ruler

• Compass

• Protractor

• Stopwatch

What is the main purpose of using a protractor in geometry?

• To measure distances

• To measure angles

• To create parallel lines

• To draw circles

Which type of angle is less than 90 degrees?

• Straight

• Obtuse

• Acute

• Right

An angle greater than 90 degrees but less than 180 degrees is called?

• Straight

• Obtuse

• Acute

• Reflex

What is the degree measure of a right angle?

• 180 degrees

• 90 degrees

• 360 degrees

• 45 degrees

Which angle looks like the corner of a piece of paper?

• Right

• Reflex

• Acute

• Obtuse

Which angle is exactly 180 degrees?

• Straight

• Obtuse

• Acute

• Right

What type of angle is larger than 180 degrees but less than 360 degrees?

• Right

• Acute

• Straight

• Reflex

How can you accurately classify an angle when unsure of its type?

• Guessing

• Asking a friend

• Using a ruler

• Measuring with a protractor

Where can students go to learn more about angles?

• mathisfun.com

• khanacademy.org

• coolmath.com

• doodleslearning.com