Grammar Planet is a three-book grammar series designed to help learners acquire a solid foundation of basic, high-frequency grammar structures. To solidify and expand learner's knowledge of grammar and to encourage steady progress, this series uses a spiral curriculum which reviews previous grammar points while simultaneously incorporating new, more complex structures. For a more detailed unit walkthrough please visit our SlideShare page www.slideshare.net/CompassPublishing/grammar-planet-commerical-ppt?qid=e4e9a3e2-bbfc-42ec-beb8-0aa607b5e151&v=&b=&from_search=1 For more information on this product or other ELT materials, please visit our homepage www.compasspub.com/eng/search/search.asp?sch_value=Grammar+Planet&x=0&y=0