3 yrs. & up. Countdown to success with our Numeral Recognition Hatchables Kit! The ready-to-use kit includes everything you need to build numeral recognition skills 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 (dominoes and numeral cards) that prompt children to recognize, sequence, and count numerals 1-20.