Check your WeBWorK answers for proper usage of parentheses. Usable on any school's WeBWorK installation.
Frustrated by entering long and complicated solutions with lots of parentheses into your WeBWorK homework assignments for your math or physics class?
This extension shows where you need to add parentheses or where you made an error in your grouping. You can now see your parentheses-related errors without having to hit the "Preview Answers" button.
Note: this does not solve you homework sets, justs helps you enter them in.