My First Theory Book by Lina Ng specifically suited for children aged 4 to 7.
My First Theory Book designed for a smooth transition to the grade 1 theory these ever popular books contain lots of excerises and games which are interesting to the child.
Included within this first book are exercises in writing treble and bass clefs, note names and counting, time signatures, the piano keyboard, writing notes in treble clef, writing notes in bass clef, rests, accidentals, stem positions, time signatures, completing bars with missing notes, completing bars with missing rests, games and tests.