Geometry Basics (Geometry Unit 1)

Learn about points, lines, planes, and other basic geometric principles in this unit.
Rating: 4.0 out of 5 (125 ratings)
6,214 students
Geometry Basics (Geometry Unit 1)
Rating: 4.0 out of 5 (125 ratings)
6,214 students
Identify points, lines, and planes
Describe points, lines, and planes using geometric notation
Write the precision of a given line segment
Describe the different between precision and accuracy
Understand the properties of line segments
Find the midpoint using the midpoint formula
Write and use the Pythagorean Theorem
Write and use the Distance Formula


  • Working headphones or speakers for audio
  • Video player (to play mp4)
  • Basic knowledge of Algebra 1

This unit is the second in a High School Geometry curriculum. It teaches basic geometric concepts so that they can be applied to more difficult concepts later on. It can be taken by traditional high school students as well as High School Equivalency (HSE) students who are learning about geometric topics for their equivalency exams (GED, TASC, and/or HiSET).Topics include:

(1) Points, Lines, and Planes

(2) Linear Measure and Precision

(3) Points Between Line Segments

(4) The Midpoint

(5) The Pythagorean Theorem

(6) The Distance Formula

Each section has a related video, a video quiz, and a section quiz. The video quiz is to be taken along with or shortly after watching the video. The section quiz is to be taken after. To supplement the course, you can use any textbook.

This course should take approximately five to ten hours to complete.

Who this course is for:
  • Current Geometry students
  • Geometry teachers who need additional resources
  • HSE/GED students who are studying for a HSE exam (GED, TASC, HiSET)
Course content
8 sections • 8 lectures • 1h 24m total length
  • Introduction
  • Points, Lines, and Planes
  • Linear Measure and Precision
  • Points Between Line Segments
  • The Midpoint
  • The Pythagorean Theorem
  • The Distance Formula
  • Answer Keys
    4 pages

Math Teacher
Matthew Gromlich
  • 4.4 Instructor Rating
  • 1,386 Reviews
  • 20,845 Students
  • 10 Courses

I am a High School Math and High School Equivalency teacher in Las Vegas, Nevada. I just finished my 4th year of teaching. My background is in math and science (B.S. in Science and Math Education, M.Ed. in Agriculture Education from North Carolina State University). I recently started a Ph.D. program at the University of Nevada, Las Vegas in Curriculum and Instruction with an emphasis in Math Education.