This is a very easy piece.  Like all of our grade 1/2 music, it is playable with only 1 flute, 2 clarinets, 1 alto sax, and 1 trumpet.  Substitute a clarinet for the trumpet if needed.  No clarinet crosses the break.  The 1st trumpet's highest note is A.  Basically, it is just two 8 bar phrases to learn.  Your students will love it.