Reach Higher is an international version launched by National Geographic Learning. As one of the mainstream elementary school textbooks in the United States, it is widely used in both domestic and international markets. The Reach Higher series is strictly based on the Common Core State Standards (CCSS) in the United States, and is jointly created by authoritative writing teams in the fields of linguistics, education, psychology, and more. The textbook content is selected from authentic award-winning literary works and non literary works from independent national geography, integrating cutting-edge teaching experience. It aims to help the new generation of English learners master language knowledge, learn academic vocabulary, phonics, reading strategies, as well as listening, speaking, reading, and writing abilities, while enhancing their thinking abilities and obtaining rich interdisciplinary content.