Given an information about the lengths of line segments, form and solve an equation in order to find the lengths of the segments. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...

Challenge yourself with this puzzle. Try to connect the dots of the same color with horizontal and vertical segments without leaving the grid and without crossing the lines.

In this video segment [2:10] from Cyberchase, Digit must make a straight line between the two points and then follow the path created.

In this lesson plan, students use line segments, angles, and parallel and perpendicular lines in order to create a one point perspective drawing.

[Free Registration/Login may be required to access all resource tools.] This concept teaches students to solve for missing segments created by a tangent line and a secant line intersecting outside a circle.

This MathWorld site gives Euclid's definition of a line, properties of lines, common terminology, and algebraic representations of lines and their distinctive parts in a cartesian system. The site then goes into detail of different line...

[Free Registration/Login may be required to access all resource tools.] Apply the definitions of midpoint, segment bisector, and angle bisector.

[Free Registration/Login may be required to access all resource tools.] This concept teaches students how to calculate midpoints and use the definitions of segment bisectors and perpendicular bisectors.

Find definitions and images of line, line segment, and ray.

Find a quick, concise explanation of rays, lines and line segments. Examples are given and clearly explained for each.

Eighth graders are shown two line segments that are the same length and must describe a sequence of reflections that exhibits a congruence between them. Aligns with 8.G.A.2.

In this task, learners investigate a dilation of a line segment and how the length of the dilation relates to the scale factor. Aligns with G-SRT.A.1.

In this task, students are shown three unit squares and two line segments connecting two pairs of vertices. They are asked to find the area of a triangle formed by intersecting lines. They can solve it using coordinate geometry or...

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...

Students can review basic geometric terms using these self-check, multiple choice questions. Three levels of questions are provided.

This site from Advogato is all about angles. It contains information starting with what an angle is and what it looks like, all the way up to bisecting angles and theorems about angles. This is very good information for students just...