Add a Web SiteMathematics
A. Number Sense, Concepts, and Operations: 2. The student understands number systems.: 9-12: The student...
MA.A.2.4.1 Add Website - Add Activity
understands and uses the basic concepts of limits and infinity.
MA.A.2.4.2 Add Website - Add Activity
understands and uses the real number system.
MA.A.2.4.3 Add Website - Add Activity
understands the structure of the complex number system.
Do "Imaginary Numbers" Really Exist?
http://www.math.toronto.edu/mathnet/answers/imaginary.htmlAn informative discussion about imaginary numbers.