The video tutorial introduces students to angles, focusing on how to measure them using a protractor. It explains the parts of a protractor, how to align it correctly, and how to read angle measurements. The tutorial also covers different types of angles, such as acute, right, and obtuse, providing examples and practice exercises to reinforce learning.

What is the total degree measure of a full circle?

• 180 degrees

• 360 degrees

• 90 degrees

• 270 degrees

Tags

CCSS.4.MD.C.5B

CCSS.HSG.CO.A.1

What is the degree measure of a semi-circle?

• 270 degrees

• 360 degrees

• 180 degrees

• 90 degrees

Tags

CCSS.4.MD.C.5B

CCSS.HSG.CO.A.1

What is the primary purpose of a protractor being transparent?

• To make it look nice

• To allow it to bend

• To see the angle underneath

• To measure more accurately

Tags

CCSS.4.MD.C.6

How should the origin of a protractor be positioned?

• At the vertex of the angle

• At the midpoint of the arc

• At any point along the angle

• Outside the angle

Tags

CCSS.4.MD.C.6

Where should the baseline of a protractor be aligned when measuring an angle?

• Along the vertex

• Along the longest side

• Parallel to the base

• Along the shortest side

Tags

CCSS.4.MD.C.6

What does it mean if an angle is obtuse?

• It is less than 180 degrees

• It is exactly 90 degrees

• It is less than 90 degrees

• It is more than 90 degrees

Tags

CCSS.4.G.A.1

What type of angle is less than 90 degrees?

• Straight

• Obtuse

• Acute

• Right

Tags

CCSS.4.G.A.1

What should you check if a protractor reading seems incorrect?

• If the scale used is correct

• The type of angle

• If it is a digital protractor

• The color of the protractor

Tags

CCSS.4.MD.C.6

If an angle measures 70 degrees, what type of angle is it?

• Straight

• Acute

• Obtuse

• Right

Tags

CCSS.4.G.A.1

What is the correct way to read a protractor when measuring an angle?

• Use the scale that starts from the right

• Always use the outer scale

• Always use the inner scale

• Depends on the angle's opening

Tags

CCSS.4.MD.C.6