ES Geometry Vocab

Open Ended

Why is it important to use precise definitions and proper notation for angles, lines, line segments, rays, and points in geometry?

Multiple Choice

Which of the following is NOT one of the basic elements you should be able to define, identify, and name according to the success criteria?

• Angle

• Circle

• Ray

• Point

Multiple Choice

Which of the following best describes a point in geometry?

• A precise location represented by a dot

• A straight figure extending in both directions

• A part of a line with two endpoints

• A figure formed by two rays

Multiple Choice

Which of the following statements about rays is correct?

• A ray has one endpoint and extends infinitely in one direction.

• A ray has two endpoints.

• A ray extends infinitely in both directions.

• A ray is a closed figure.

Open Ended

Compare and contrast a line, a line segment, and a ray based on their endpoints and direction. Provide examples from the images.

Multiple Select

Select all the correct statements about angles:

• An angle is formed by two rays meeting at a common endpoint.

• The common endpoint of the rays is called the vertex.

• Angles are represented by the symbol ∠.

• A line segment forms an angle by itself.

Open Ended

What is one question you still have about geometry vocabulary or the concepts of angles, lines, rays, line segments, or points?

Multiple Choice

How confident do you feel in defining and using the proper notation for angles, lines, line segments, rays, and points after this lesson?

• Very confident

• Somewhat confident

• Not very confident

• Not at all confident