Geometry 1-4 Complete Lesson: Measuring Angles

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Justification: Describe two ways you can verify your answer(s).

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Take Note: Define angle.

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Take Note: What are three ways to name an angle?

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Take Note: A classmate measured ∠AOB incorrectly and found it to be 55 degrees.
Explain the mistake and offer advice to help the student avoid the mistake in the future.

You may use the canvas to help illustrate your explanation and/or advice.

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Problem 2 Got It?

Find the measure of the angle and classify it as acute, right, obtuse, or straight.

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Problem 2 Got It?

Find the measure of the angle.
Enter only a number.

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Problem 2 Got It?
Classify the angle as acute, right, obtuse, or straight.
Respond with one word, not a complete sentence.

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Problem 3 Got It?

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Take Note: Define congruent angles.

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Problem 4 Got It?

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Vocabulary: How many sides can two congruent angles share? Explain.

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Error Analysis: Your classmate concludes from the diagram below that ∠JKL ≅ ∠LKM.

Is your classmate correct? Explain.

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Review Lesson 1-3: Use the figure.

If EG = 75 and EF = 28, what is FG? Enter only a number.

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Algebra Review: In the response field, write an equation to represent the sentence.

Twice a number x added to 4 is 28.

On the canvas, copy your equation and solve it. Show each step.

You may also complete your work on paper or on a whiteboard and upload a clear picture of it to the canvas.

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Vocabulary Review: True or false: \overrightarrow{AB} names a ray with endpoints A and B.

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Vocabulary Review: True or false: You name a ray by its endpoint and another point on the ray.

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Reflection: Math Success

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Geometry 1-4 Complete Lesson: Measuring Angles

Justification: Describe two ways you can verify your answer(s).

Take Note: Define angle.

Take Note: What are three ways to name an angle?

Take Note: A classmate measured ∠AOB incorrectly and found it to be 55 degrees.Explain the mistake and offer advice to help the student avoid the mistake in the future.You may use the canvas to help illustrate your explanation and/or advice.

Problem 2 Got It?Find the measure of the angle and classify it as acute, right, obtuse, or straight.

Problem 2 Got It?Find the measure of the angle.Enter only a number.

Problem 2 Got It? Classify the angle as acute, right, obtuse, or straight. Respond with one word, not a complete sentence.

Problem 3 Got It?

Take Note: Define congruent angles.

Problem 4 Got It?

Vocabulary: How many sides can two congruent angles share? Explain.

Error Analysis: Your classmate concludes from the diagram below that ∠JKL ≅ ∠LKM. Is your classmate correct? Explain.

Review Lesson 1-3: Use the figure. If EG = 75 and EF = 28, what is FG? Enter only a number.

Algebra Review: In the response field, write an equation to represent the sentence.Twice a number x added to 4 is 28.On the canvas, copy your equation and solve it. Show each step.You may also complete your work on paper or on a whiteboard and upload a clear picture of it to the canvas.

Vocabulary Review: True or false: \overrightarrow{AB} names a ray with endpoints A and B.

Vocabulary Review: True or false: You name a ray by its endpoint and another point on the ray.

Reflection: Math Success

Justification: Describe two ways you can verify your answer(s).

Take Note: Define angle.

Take Note: What are three ways to name an angle?

Take Note: Label the interior and exterior of the angle on the canvas.

Problem 1 Got It?What are two other names for ∠KML?Select all that apply.

Take Note: A classmate measured ∠AOB incorrectly and found it to be 55 degrees.Explain the mistake and offer advice to help the student avoid the mistake in the future.You may use the canvas to help illustrate your explanation and/or advice.

Take Note: Summarize the Protractor Postulate.

Take Note: Sketch each of the following types of angle on the canvas:◆ acute◆ right◆ obtuse◆ straight

Problem 2 Got It?Find the measure of the angle and classify it as acute, right, obtuse, or straight.

Problem 2 Got It?Find the measure of the angle and classify it as acute, right, obtuse, or straight.

Problem 2 Got It?Find the measure of the angle.Enter only a number.

Problem 2 Got It? Classify the angle as acute, right, obtuse, or straight. Respond with one word, not a complete sentence.

Problem 3 Got It?

Take Note: Define congruent angles.

Problem 4 Got It?

Vocabulary: How many sides can two congruent angles share? Explain.

Error Analysis: Your classmate concludes from the diagram below that ∠JKL ≅ ∠LKM. Is your classmate correct? Explain.

Review Lesson 1-3: Use the figure. If EG = 75 and EF = 28, what is FG? Enter only a number.

Algebra Review: In the response field, write an equation to represent the sentence.Twice a number x added to 4 is 28.On the canvas, copy your equation and solve it. Show each step.You may also complete your work on paper or on a whiteboard and upload a clear picture of it to the canvas.

Vocabulary Review: True or false: \overrightarrow{AB} names a ray with endpoints A and B.

Vocabulary Review: True or false: You name a ray by its endpoint and another point on the ray.

Use Your Vocabulary: Identify the rays that form the angle shown. Select all that apply.

Reflection: Math Success

Solve It!Which angles, if any, are the same size as the angle in the top right?Select all that apply.

Take Note: Sketch each of the following types of angle on the canvas:◆ acute◆ right◆ obtuse◆ straight

Take Note: A classmate measured ∠AOB incorrectly and found it to be 55 degrees.
Explain the mistake and offer advice to help the student avoid the mistake in the future.

You may use the canvas to help illustrate your explanation and/or advice.

Problem 2 Got It?

Find the measure of the angle and classify it as acute, right, obtuse, or straight.

Problem 2 Got It?

Find the measure of the angle.
Enter only a number.

Problem 2 Got It?
Classify the angle as acute, right, obtuse, or straight.
Respond with one word, not a complete sentence.

Error Analysis: Your classmate concludes from the diagram below that ∠JKL ≅ ∠LKM.

Is your classmate correct? Explain.

Review Lesson 1-3: Use the figure.

If EG = 75 and EF = 28, what is FG? Enter only a number.

Algebra Review: In the response field, write an equation to represent the sentence.

Twice a number x added to 4 is 28.

On the canvas, copy your equation and solve it. Show each step.

You may also complete your work on paper or on a whiteboard and upload a clear picture of it to the canvas.

Problem 1 Got It?

What are two other names for ∠KML?

Select all that apply.

Take Note: A classmate measured ∠AOB incorrectly and found it to be 55 degrees.
Explain the mistake and offer advice to help the student avoid the mistake in the future.

You may use the canvas to help illustrate your explanation and/or advice.

Take Note: Sketch each of the following types of angle on the canvas:
◆ acute
◆ right
◆ obtuse
◆ straight

Problem 2 Got It?

Find the measure of the angle and classify it as acute, right, obtuse, or straight.

Problem 2 Got It?

Find the measure of the angle and classify it as acute, right, obtuse, or straight.

Problem 2 Got It?

Find the measure of the angle.
Enter only a number.

Problem 2 Got It?
Classify the angle as acute, right, obtuse, or straight.
Respond with one word, not a complete sentence.

Error Analysis: Your classmate concludes from the diagram below that ∠JKL ≅ ∠LKM.

Is your classmate correct? Explain.

Review Lesson 1-3: Use the figure.

If EG = 75 and EF = 28, what is FG? Enter only a number.

Algebra Review: In the response field, write an equation to represent the sentence.

Twice a number x added to 4 is 28.

On the canvas, copy your equation and solve it. Show each step.

You may also complete your work on paper or on a whiteboard and upload a clear picture of it to the canvas.

Solve It!

Which angles, if any, are the same size as the angle in the top right?

Select all that apply.

Take Note: Sketch each of the following types of angle on the canvas:
◆ acute
◆ right
◆ obtuse
◆ straight