https://en.wikipedia.org/wiki/Lead_sheet

At the music service that I work for (when I’m not working for other schools or as a private teacher) we have been revising the piano curriculum that supports and underpins what we teach. For the first time, teaching the pupils how to read lead sheets has been incorporated, starting from around pre-grade 1 level. In the early stages we just get the pupils to play a simply accompaniment to a melody using the chord symbols, while I play the melody, working up to more complex chords and “hands together” as they progress.

I’ve added chord symbols to many of the easy songs that I use in music lessons like this;

so I think these will help me get started. I’m also going to browse through www.teachpianotoday.com which has a lot of blog posts and ideas to get me started.