Poco Theory Drills for young children by Ying Ying Ng is a fun workbook of theory exercises with lots of colouring, tracing and stickers. This book is best used alongside Poco's Theory for Young Children, or another beginner theory book. It is very interactive, and children can use it at home after a music lesson. Contents include title names and time values of notes and rests, time signatures, quavers and bar-lines.