This unit is designed to increase a student's vocabulary. By learning these Greek and Latin prefixes, suffixes, and roots, a student will be able to recognize the definitions of thousands of new words. It is very useful as a tool for preparing students to be successful on the SAT or ACT test. It is designed to be both simple to use and very effective. An easy to use and understand instruction sheet is included. A separate final exam testing prefixes, suffixes, and roots is also available.