What phonics is to reading, that's what root study is to vocabulary. Phonics gives you the tools to read almost any word, while roots give you the tools to unlock a flood of vocabulary. Barron's SAT Prep Manual says, "Learning fifty key word parts can help you unlock the meaning of over 100,000 words " Which is easier to learn, fifty roots or 100,000 new words? Vocabulary Vine is the root study with more fun and better reinforcement for less money...