The lesson investigates vocabulary used in Geometry. Definitions and examples are included.

[Free Registration/Login Required] In this lesson the teacher will use geometry and spatial sense to distinguish between point, ray, line, line segment and angle. The students will review vocabulary for these terms and then...

[Free Registration/Login Required] This flipchart introduces and reviews the basic geometric terms associated with two-dimensional shapes.

Use these resources in preparing instruction on undefined terms (points, lines, and planes), theorems relating lines and planes, and Euclidean and non-Euclidean geometry. You'll find three lessons on the aforementioned subject areas, an...

[Free Registration/Login may be required to access all resource tools.] In this lesson students identify points, rays, lines, and line segments. Students examine guided notes, review guided practice, watch instructional videos and...

This robust lesson plan for upper elementary and middle school grades introduces the concepts for lines, rays, line segments, and planes. Resources are linked to it and ready for your use.

Activity will allow students to study vocabulary words and definitions with personal or in class calculators.

In this activity, students use the Cabri software to mark points, draw lines, construct parallel and perpendicular lines, angles, bisectors, and triangles. They learn how to use the tool to measure angles.

The students will be split into small, cooperative groups and build a city following specific guidelines. The students will learn how a city is constructed with angles, intersections, parallel, intersecting, and transversal streets. They...

The resource explores basic terms used in geometry. The tutorial defines a point, line, and plane. Examples are included.

Explore acute, obtuse, and angle measures in this interactive activity.

This site includes two first grade math vocabulary lesson plans: one for measurement terms and time and money, and another for geometry terms

Four different games are featured to practice geometry terms.

[Free Registration/Login Required] Learn about polygons, angles, parallel, intersecting and perpendicular lines as you journey into space. Included is an activote quiz.

Explore why objects drawn on a plane are two dimensional in this video tutorial. [4:57] Take a quiz to assess learning.

This interactive resource provides an example picture of the geometric figure chosen by students to review.

Learn all about the basic geometric constructions in this test prep lesson. You will explore line segments and points, and understand key terms like the terms parallel and perpendicular. Construction activities and interactive online...

This very basic website gives a clear, simple explanation of what a right angle is.

This very basic website gives a clear, simple explanation of what an acute angle is.

Topics covered in this site are: concepts of numbers, geometry, algebra and statistics. This site has lesson plans, interactive activities and discussions.

This tutorial provides an explanation of line segments.

This website gives a very brief explanation and example of rays.

An online game where students use their skill to classify geometrical figures.

A game matching math vocabulary diagrams to the word. Content includes and geometry terms and various other math terminology.