Measuring Angles with a Protractor

This video tutorial teaches students how to read a protractor and measure angles. It explains the two sets of numbers on a protractor and how to determine which set to use based on the angle's direction. The video provides examples of measuring both obtuse and acute angles, emphasizing the importance of identifying the type of angle and its measurement in degrees. Students are encouraged to practice these skills in their assignments and to ask questions if needed.

What is the starting point of measurement on a protractor?

• At the center of the protractor

• At the 90-degree mark

• At the 180-degree mark

• At the 0-degree mark

Tags

CCSS.4.MD.C.6

Which side of the protractor is used if the angle opens to the right?

• Top side

• Bottom side

• Left side

• Right side

Tags

CCSS.4.MD.C.6

What type of angle is greater than 90 degrees but less than 180 degrees?

• Acute angle

• Straight angle

• Right angle

• Obtuse angle

Tags

CCSS.4.G.A.1

How is an angle measured on a protractor?

• From left to right using the top numbers

• From right to left using the bottom numbers

• From the angle's end point back to zero

• From zero to the angle's end point

Tags

CCSS.4.MD.C.6

What is the measurement of the obtuse angle discussed in the video?

• 90 degrees

• 110 degrees

• 100 degrees

• 120 degrees

Tags

CCSS.4.MD.C.6

Which set of numbers is used if the angle opens towards the left?

• Right numbers

• Left numbers

• Top numbers

• Bottom numbers

Tags

CCSS.4.MD.C.5B

CCSS.HSG.CO.A.1

What type of angle is less than 90 degrees?

• Obtuse angle

• Straight angle

• Acute angle

• Right angle

Tags

CCSS.4.G.A.1

What is the measurement of the acute angle discussed in the video?

• 90 degrees

• 70 degrees

• 100 degrees

• 80 degrees

Tags

CCSS.4.MD.C.6

How can you verify the correctness of an angle measurement?

• By checking if it matches the expected angle type

• By asking a friend

• By measuring twice

• By using a different protractor

Tags

CCSS.4.MD.C.6

What should you do if you have questions about measuring angles?

• Skip the question

• Ask the teacher for help

• Guess and move on

• Ignore the doubts

Tags

CCSS.4.MD.C.6