We also learned this song to help us remember: (Tune Bingo)
There was a food that God did give
And manna was its name o
M-A-N-N-A, M-A-N-N-A, M-A-N-N-A,
And manna was its name o.
The kids had trouble remembering the letters, and the kindergarten teacher in me saw an opportunity to let them practice letter recognition, so I made letter cards for each letter and one of the kids gets to point to the letters as we sing the song. They love it!!!