Impact helps teenage learners to better understand themselves, each other, and the world they live in. ?By encouraging self-expression, global citizenship, and active participation, Impact motivates students to explore who they are and who they want to be, all while learning English!National Geographic Explorers are featured as role models who embody the 21st century skills and values teenagers need to become successful global citizens.Cross-curricular topics engage learners with stimulating inf ormation about the world, better preparing the for future academic success.Student choice activities and projects present learners with options for language practice, allowing teens to become active participants in the learning process.