Backpack 3 CD-ROM (Single User) is an interactive digital resource designed to complement the Backpack 3 course. It provides a variety of multimedia activities, interactive exercises, games, and self-paced practice that reinforce the vocabulary, grammar, pronunciation, and language skills introduced in the Student Book. Intended for individual use, the CD-ROM offers engaging practice and immediate feedback to help young learners strengthen their English skills both in the classroom and at home.