In G major, it is a one-part form.

A [a (measures 1-4) + b (measures 5-8)]

The tonic I chord begins with the bass on its third (B), forming a first inversion chord. This is likely due to consideration for hand position, as the piece is probably an etude for children. Since the sixteenth-note left-hand accompaniment is primarily concentrated in a relatively high register (within the bass clef), it should be played lightly and smoothly.