Building a Vocabulary Powerhouse is a series of vocabulary expansion books designed for grades K-5. The entire series consists of 6 books, which contain fun activities for 300 words. One book, for grades K-1, reinforces sight words, while the other books introduce challenging words for grades 1-5. Past and current research has shown that vocabulary development in young students, particularly with regard to challenge words, is a strong indicator for success in reading, writing, and life in general. With better comprehension of these more difficult words, students show growth in reading power and become better written and oral communicators. This unique format of each book introduces 10 weekly words with five days of practice. Each day provides repetitive exposure to the given vocabulary through the use of fun word puzzles and activities. As students complete the daily work, they will become comfortable with more sophisticated words that they may encounter in their reading and everyday lives. Consequently, students may begin to use these challenging words as they speak and write.