Explore the world of transversals in this mini-lesson. Learn about transversals, transversal lines, and angles. There are transversal examples and a few interesting practice questions at the end of the page to strengthen your concepts of...

Learn how to construct bisectors of line segments and angles.

Construct a copy of a line segment in this interactive exercise.

Learn the four categories of theorems that have to do with lines and angles.

Use your knowledge about angles to find missing angle measures in various situations. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

This step-by-step tutorial teaches students how to construct a bisector of a segment and the bisector of an angle.

[Free Registration/Login Required] Students will use interactive triangles to explore how a line bisects an angle. Click learn more to watch a video and click challenge me to answer a practice question.

This site provides a step-by-step method to construct congruent segments and angles with a straight edge and compass.

Here is a partial list of theorems, postulates, and properties.

A definition, examples, and a video lesson all help to explain polygons. [0:43]

[Free Registration/Login Required] Students will move the points on the line segments to explore anlge measures outside the circle. Click learn more to watch a video and click challenge me to answer a practice question.

Discover how to find distances and midpoints by viewing examples and a video lesson. [1:07]

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...

The geometry resource explores basic shapes, lines, and angles. Descriptions, examples, and practice problems are included.

Students learn about parallel lines and pairs of angles. Definitions and examples are included.

Do you need practice remembering or learning different geometry vocabulary words and definitions? This word search is the web site for you! There is a link to a list of terms with definitions you can click if you want to see if you are...

This site describes lines and angles "as found in various plane (flat) geometric figures.".

A "convention" is "just the way a thing is done!". This reference material lists some common conventions (notational assumptions) for geometry and trigonometry.

Discovering the properties of constructions, seeing proofs in action, and viewing problems come to life here with this wonderful use of technology in the classroom. Single steps are explained and illustrated one at a time so that the...

The purpose of this task is to lead students through an algebraic approach to a well-known result from classical geometry, namely, that a point X is on the circle of diameter AB whenever angle AXB is a right angle. This consists of...

This task uses GeoGebra software, which can be freely downloaded, to explore what happens to the line segments and angles of a triangle when it is reflected, rotated, and translated. Includes printable task sheet for students and a...

[Free Registration/Login Required] This flipchart is a look at angles in geometry. Drawing, labeling, measuring, special angles: (right, straight, acute, obtuse) and congruence.

[Free Registration/Login Required] This flipchart regards parallel lines and relationship of angles created by a transversal. Includes lesson on vocabulary, Jeopardy-style game, and quiz.

[Free Registration/Login Required] This lesson has many student interactive tricks. It is very exciting and gets the students actively engaged as they solve problems on the board. The lesson is an introduction to angles. It also reviews...