Explore Our World 5 Workbook + CD (US Edition) is a supplementary English practice workbook designed to accompany the Explore Our World 5 course. It provides additional activities to reinforce the language presented in the Student’s Book, including vocabulary, grammar, reading, writing, and communication practice. The accompanying CD offers listening activities to support learners’ oral comprehension and pronunciation skills. The course encourages children to learn English while exploring topics related to the world around them.