[Features of LET'S GO Course Book App] LET'S GO to the English World App is an application developed for use with textbooks. We have all 15 content in the App. The LET'S GO Coursebook App consists of the following contents. 1. Textbook MP3 2. Animation video (Word Chant, Song, Mini Talk, Story) 3. Word Flashcard 4. Activity (Word Quiz, Find the Sentence, Make Sentences) [Features of LET'S GO Course Book Textbook] Total 15 books (1 ~ 5 steps, each A B C book) 1. Elementary English curriculum linkage By learning essential expressions and vocabulary to be dealt with in textbooks and elementary school, It solves your English skills and school studies at once. 2. Spiral learning system It is easy to understand and review takes place naturally. 3. Implementation of a method suitable for coaching classes Combining speaking and writing activities, teacher guidance and self-directed learning It is a useful textbook for coaching classes combined with a method. 4. Maximize the learning effect by strengthening reading considering the characteristics of each step • Step 1: Reading sentences related to other subjects centered on the vocabulary category + Reviewing phonics • Step 2-3: STORY + phonics review linked with central expression • Step 4-5: Reading + Pattern Grammar + Reading Plus in connection with central expression 5. Wordbook and workbook are provided as books. • Learn words and basic sentence patterns with wordbooks • Classes with student books • Review with a workbook and learn English word order with the writing section