Fourth graders use computer drawing tools to create a house of geometric shapes.

Students use Venn diagrams in order to classify different objects and numbers. They then use "Venn Diagram Shape sorter" applets on the computer.

Students develop definition for parabola, explain relationship between properties of the graph of a parabola and its equation, explain how the equation of a parabola can be written in different forms, and solve problems that relate the...

Students develop a definition of parabola and explain the relationship between the properties of the graph of a parabola and its equation. They explain how the equation of a parabola can be written in different forms and solve problems...

Students use bearing measurements to triangulate and determine objects' locations. Working in teams of two or three, students must put on their investigative hats as they take bearing measurements to specified landmarks in their...

Fourth graders are introduced to how to properly create a grid site. In groups, they use Cartesian coordinates to establish the boundaries for the grid and photograph the location of artifacts. They exchange their photos with another...

Young scholars comprehend the geographic themes of location, movement, and human-environment interaction. They identify ways in which individuals depend upon each other within their community. Students identify examples of linkages and...

Young scholars use problem solving skills, formal geometry, and The Geometer?s Sketchpad. They model and solve two real-world problems by constructing the in center and circumcenter of triangles.

Students study maps. In this geography and art lesson, students create their own map of the classroom.

In this Cyberchase video, Inez and Digit identify the location of the transformatron using their knowledge of parallel and intersecting lines.

In this seven-problem quiz/practice, students will calculate whether a point is inside a triangle in 3D.

In this seven-problem quiz/practice students calculate the point at which a ray intersects with a plane in three dimensions.

[Free Registration/Login may be required to access all resource tools.] Identify intersecting and parallel 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.

This site gives a description and picture of intersecting planes. Be sure to follow the "More Information," and "Interactive Challenge," links located in the left-hand column for more information about intersecting planes.

A complete reference guide to points, lines, and planes. It provides definitions and interactive activities that enhance further explanation.

This lesson demonstrates graphing two lines on a coordinate plane and determining the point where two lines intersect. It is 5 of 5 in the series titled "Finding Intersections."

In these problems, students are asked to find: point of intersection of two lines; coefficients that make two lines parallel; intersection of diagonals of a quadrilateral; and the point of intersection of three planes.

The purpose of this task is to introduce students to systems of equations. It takes skills and concepts that students know up to this point, such as writing the equation of a given line, and uses it to introduce the idea that the...

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

This site gives a description of intersection of sets along with an example. There are links to related terms, challenging problems, more information, and the interactive check point involving set intersections located in the left-hand...

This site from The Math Forum of Drexel University provides a question posed by a students with a response. The question involves the points of intersection of two intersecting angles.

This collection of five middle school math lessons covers the topic of plane geometry, specifically the concept of slope. The first lesson introduces students to plotting points on a Cartesian grid using a Geoboard. Lesson two moves them...

This lesson demonstrates graphing two lines on a coordinate plane and determining the point where two lines intersect. It is 2 of 5 in the series titled "Finding Intersections."