3 yrs. & up. The Language Vocabulary Hatchables Kit will launch your children to success! The ready-to-use kit includes everything you need to increase vocabulary and support the development of receptive language while working with small groups. The Hatchables Kit provides step-by-step instructions that enable teachers to implement comprehensive and engaging lessons using a variety of hands-on materials (language work-mat, sentence cards and clue cards) that prompt children to play a detective game while improving their language vocabulary.