"Happy Hearts" is a three-level course for children aged 3-6 years. It features engaging characters like Billy, Molly, and Kenny the Cat that will appeal to all children of pre-school age. Happy Hearts develops the listening, speaking and pre-reading/pre-writing skills of young children through art, music and movement. It provides a carefully graded learning programme that ensures pre-schoolers make simple yet steady progress in the development of their English language skills.