Measuring Angles with Protractors

The video tutorial covers the concept of measuring angles, focusing on the fourth-grade standard 4.7 C in Texas. It uses a problem from the 2022 released STAR test to demonstrate how to measure angle TUV with a protractor. The tutorial explains different types of angles, including acute, right, and obtuse angles, and guides viewers through a visual and mathematical analysis of angle TUV, emphasizing the use of subtraction to find the correct measurement.

What is the main focus of the lesson in this video?

• Learning about fractions

• Understanding multiplication

• Measuring angles in fourth grade

• Exploring geometry shapes

Which standard is being addressed in this lesson?

• Standard 3.5 A

• Standard 4.7 C

• Standard 5.2 B

• Standard 6.1 D

What is the first step suggested before solving the problem?

• Read a textbook

• Skip to the end for answers

• Pause the video and try the problem

• Watch the entire video

What tool is used to measure angle TUV?

• Protractor

• Compass

• Calculator

• Ruler

Which type of angle is less than 90 degrees?

• Straight angle

• Acute angle

• Obtuse angle

• Right angle

What is the characteristic of a right angle?

• Less than 90 degrees

• Exactly 90 degrees

• More than 90 degrees

• 180 degrees

Which angle is greater than 90 degrees?

• Reflex angle

• Acute angle

• Obtuse angle

• Right angle

How can you visually determine if an angle is less than 90 degrees?

• It is narrower than a right angle

• It is wider than a right angle

• It forms a square corner

• It forms a straight line

What is the visual clue that angle TUV is less than 90 degrees?

• It forms a straight line

• Both rays are within 90 degrees

• It is on the left side of the protractor

• It starts at zero

What operation is used to find the measure of angle TUV using a protractor?

• Subtraction

• Multiplication

• Division

• Addition