The Music Theory for Young Musicians series by Ying Ying Ng is a
colorful and imaginative set of books that covers all aspects of the
ABRSM theory syllabus for Grades 1--5. With one book per grade,
assigning theory lessons for your students couldn't be easier. The new
revised edition of the Grade 4 book contains a step-by-step guide for
each concept, then general exercises for the evaluation and
reinforcement of these concepts, and finally some sample test papers so
you can be certain of success before entering your student.