Interactive assessment in which the solution set of an equation is found. Combines equation solving skills with set notation, introduces empty sets, intersections, subsets of real numbers (rational, integer, prime, etc.).

Here is a site that clearly and thoroughly explains rational and irrational numbers as subsets of the real number system. There are example problems solved, problems for the student to attempt, and answers to the student problems. Point...

The subsets of the real number system are organized in an easy-to-read table. Use the questions at the bottom of the page as an assignment to check for understanding.

This site is a tutorial for students in algebra 2 or for those who need a refresher. The site has explanations, definitions, examples, practice problems and practice tests are found covering topics such as linear equations, graphing,...

[Free Registration/Login may be required to access all resource tools.] This lesson covers how to identify the subsets of real numbers and placing a real number into one of these subsets.

[Free Registration/Login may be required to access all resource tools.] Determine how the graph of a square root function shifts as values are added and subtracted from the function and multiplied by it.

This lesson plan helps students distinguish between strictly complex numbers, strictly real numbers and strictly imaginary numbers while learning that real numbers and imaginary numbers are subsets of the set of complex numbers.