National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Intersection of Sets
This site responds to an inquiry about what the intersection of sets is. Dr. Math gives an example using cars with certain attributes and then the intersection of these sets.
University of Georgia
University of Georgia: Inter Math: Intersecting Lines
This site opens with a very simple definition of intersecting lines and has links to challenging problems, more information, related terms and everyday examples of intersecting lines.
Tech Target
Whatis.com: Intersection Symbol
Scroll down to see the defintions of intersection and intersection symbol. This site includes the common notation and a pictorial representation of an intersection of elements.
Curated OER
Language Guide: El Recorrido Por Tierra
Travel by land is the focus of these interactive vocabulary words. Learners will hear the correct Spanish pronunciation as the mouse is moved over each illustration.