[Free Registration/Login Required] This flipchart reviews segments, parallel and perpendicular lines and then introduces polygons including quadrilaterals. It has many real world examples of shapes and includes Activote assessment.

A wealth of resources to supplement instruction on parts of the circle. Find lessons describing chords, tangents, secants, and segments, as well as related practice quizzes and classroom activities.

PBS sends reporter Sam Kiley to the front-line in Iraq in order to obtain a more detailed, realistic look at the possible existence of a Nuclear Weapon Program. The text on the site provides a quick, concise overview of the video segment...

In this lesson, you will learn about the various types of lines, line segments, rays, the line segment symbol, and line segment examples. Check out the interactive examples and try your hand at solving a few interesting practice...

Figure out the coordinates of a point between two other points that give a certain ratio. For example, find a point C so that it is two-thirds of the way between point A and B. Students receive immediate feedback and have the opportunity...

Recognize rays, lines, and line segments in geometric figures. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Reviews the characteristics of lines, lines segments, and rays, and presents questions for additional practice. Questions include hints.

Explores how to measure the length of a line segment through examples and a video lesson. [0:40]

[Free Registration/Login may be required to access all resource tools.] This study guide reviews how to measure the distance between two points and the Ruler Postulate. It also introduces congruency/congruent segments and midpoint.

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

Learn how to construct bisectors of line segments and angles.

In this lesson, students will identify and draw lines, segments, rays, angles, and points.

Figure out the coordinates of a point between two other points that give a certain ratio. For example, find a point C so that it is two thirds of the way between point A and B.

This lesson focuses on Euclidean Geometry terminology; such as line, point, line segment, congruence, circle, radius, ray, and more. It defines each term and provides an example of each.

Second graders need to share their understandings of lines, line segments, shapes and attributes.

Explore lines and angles, and the relationship between the two.