Undefined Terms | Point Line Plane | Intro to Geometry

Rated 4.9 out of 5, based on 21 reviews
21 Ratings
Time Flies
Grade Levels
8th - 10th, Homeschool
Formats Included
  • PDF
20 pages
Share this resource
Report this resource to TPT
Time Flies
Easel Activity Included
This resource includes a ready-to-use interactive activity students can complete on any device.  Easel by TPT is free to use! Learn more.
Also included in
  1. This is a complete High School Geometry Curriculum. You will receive a combination of worksheets, notes, quizzes, tests, projects, Google activities, and Boom Cards. (Don't want Boom Cards? Here's the same Curriculum without the Boom Cards: Geometry Lessons for the Year.) All PDF resources can be us
    Price $165.00Original Price $217.60Save $52.60
  2. This unit covers point, line, plane, angles, segments, rays, midpoint, distance, segment addition and more! This unit is the building block for the rest of Geometry. Students need this foundation to be successful. There are three complete lessons with notes, practice, activities and assessment. The
    Price $20.48Original Price $23.05Save $2.57
  3. This is a complete High School Geometry Curriculum. This is the same curriculum that I already sell except this one contains NO Boom Cards. You will receive a combination of worksheets, notes, quizzes, tests, projects and Google activities. All PDF resources can be used in a Google Classroom using t
    Price $135.00Original Price $177.10Save $42.10


The introduction to geometry begins with points, lines, line segments, rays and angles, but even more specific we must start with the undefined terms Point Line Plane. It's also time to start talking about postulates!

Here's a Boom Card activity that would go well with this lesson: Undefined Terms Boom Cards.

The following pages are in the lesson:

  • Bell ringer opener to find out how much they know - as well as a quick protractor exercise.
  • Note pages that can be taped into their interactive notebook.
  • Worksheets to use in class or as homework.
  • Point, line, plane postulate Google Slides presentation.
  • Patty paper constructions .
  • Paper quiz and a digital quiz.

As a teacher, you will be happy to know that you can use this as a paper/pencil lesson or in your Google Classroom. When you click the option of "view two files", you will find a lesson ready to go for your virtual learning platform.

This lesson covers these terms:

  • point
  • line
  • plane
  • ray
  • segment
  • angle
  • supplementary
  • complementary
  • acute
  • obtuse
  • right
  • straight
  • adjacent
  • collinear
  • noncollinear
  • coplanar
  • noncoplanar
  • postulates

The following standards are covered:


TEKS: G.4(A)

Did you know there is a Geometry Curriculum that you can purchase? If you like this first lesson, go check out the year-long curriculum.

Next lesson after the Point Line Plane:

Segment Addition and Angle Addition


Follow Me - When you follow me, you will be notified of new products which are always 50% off for 24 hours!

Copyright ©Time Flies/Lisa Hamiter. All rights reserved by author. This product is to be used by the original downloader only. Copying for more than one teacher, classroom or school system is prohibited.

Total Pages
20 pages
Answer Key
Teaching Duration
90 minutes
Report this resource to TPT
Reported resources will be reviewed by our team. Report this resource to let us know if this resource violates TPT’s content guidelines.


to see state-specific standards (only available in the US).
Know precise definitions of angle, circle, perpendicular line, parallel line, and line segment, based on the undefined notions of point, line, distance along a line, and distance around a circular arc.


Questions & Answers


TPT empowers educators to teach at their best.

More About Us

Keep in Touch!

Sign Up