Points, Lines, Planes

Points, Lines, Planes

Theorems about points, lines, planes

Warm-up problemsp. 2 #1-4

Then review definitions of terms & examples on p. 1-4

Essential Question

How are points, lines, and planes identified and named?

Group Activity

Fill in the blanks in the definitions with the terms in the word bank envelope.

Identifying Lines and Collinear Points

a.Name the line in two ways.

b.Name three non-collinear points.

Identifying Planes

Give two different names for the plane.

Identifying Coplanar Lines

a.Identify the coplanar lines.

b.Identify the non coplanar lines.

Intersections of Lines

•Use the term

“intersect” or

“intersection” to

describe the

diagram.

Intersections of Planes

•Record at least three geometric observations noted in the diagram.

Intersections of Planes

•What is the intersection of lines PL and GY?

•Give two names for the intersection of planes M and N.

Summarizing Key Points through an online quiz.

Practice Problems

•Lesson Practice Problems p. 4, a - h

•(work with group)