At this point in music study, the melody of a new piece is very easy for a student to pick up. I always get them started with the LH so that they feel comfortable moving on with the piece. After the slide up into the black keys in m. 1-2 of this Sonatina, it is measures 3-4 that pose the bigger difficulty.
The top line of the LH chords is going to be
legato, while the bottom line needs to lift in order to repeat the same note. Here is how it is done: