Music Theory IM1 by Ivan Markovitch is the first of four progressive books for beginners which introduces them to musical formation and theory.
This method includes numerous games, tunes and nursery rhymes which can keep the beginners entertained and develop their musical ear. With tonality, rhythm, and note reading, this really complete method is perfect to maintain the attention and to develop good musical basics.
Ivan Markovitch is a Serbian musician and professor established in France since the 60s. He created many choirs and composed many pieces for voice and instruments.