Real+Life+Systems

[|Cell Phone plan lesson]- Lesson from Henry Picciotto's website... has students comparing several cell phone plans.

[|Detention Buy Out]- Love this one! A video introduction to a problem...administrators from a school offer "detention buy out" on three different plans!

Seven word problems where both equations in the system are "naturally" written in slope intercept form Each problem asks students to write a system, solve it, and explain what the solution means in the context of the problem. Then each problem has an extension question that can be solved with the system.

A set of word problems that can be printed as is for folders or stations, or printed multiple problems to a page to use together.

- Four application problems that are "best" solved with substitution.

Mixed word problems.

- More mixed word problems

-Writing and Solving Systems of Equations NCTM activity/extension