- Kid"s Box is a six-level course for young learners. Bursting with bright ideas to inspire both teachers and students, Kid"s Box gives children a confident start to learning English. It also fully covers the syllabus for the Cambridge Young Learners English (YLE) tests. This Activity Book covers all of the target language from Pupil’s Book 4, providing further practice in a fun context. Level 4 completes the Movers cycle (CEF level A1).