My kids love to play this easy song on the Orff instruments too. There are also slides at the end that show the whole song in iconic notation.
These slides are available for download on my teachers pay teachers page, either as a Mimio lesson, or as a PDF. Please make sure you select the right one for you, as I know not everyone has access to Mimio software.
If you have any questions, feel free to comment or email me at LindsayJervis@hotmail.com