Maria's rhythm was quite good through most of this Halloween piece. She loved playing it. Everything was fine until the final measures when some quarter rests were going unnoticed.
Instead of telling her to count out loud, I had her "clap in the rests."
Giving a student an active experience of a rest is the best way to make rhythm real.
The piece is Masquerade Party - one of those magical pieces that always works.
Here are links to find the piece. (Click on the titles.)
Here's the first page: