The 1st and 2nd endings in bars 5-6 and 10-11 were removed so the repeats play straight through (each repeat now takes the same bars twice instead of jumping to a second ending), the pickup and 3/4 bars were folded into one 4/4 time signature (the short first and last bars are still allowed to be short), and the percussion clefs were redrawn as treble. No notes children play were changed.
The 1st and 2nd endings in bars 5-6 and 10-11 were dropped (the reader cannot follow them), so each repeat now plays straight through both ending bars instead of choosing one - listen through once to check that is acceptable. The pickup and the final 3-beat bar were turned into short bars of a single 4/4 time signature, and the percussion clefs on Triangle, Tambourine and Wood Blocks were redrawn as treble clefs (same notes, same letter names).
The 1st/2nd ending brackets in bars 5-6 and 10-11 were removed, so each repeat now plays the same bar on both passes instead of jumping to a second ending; the 1/4 pickup and 3/4 final bar were relabelled 4/4 (the notes are unchanged, short first/last bars are read as pickup), and the percussion clefs on Triangle, Tambourine and Wood Blocks were changed to treble so the reader accepts them.
The 1st and 2nd endings in bars 5-6 and 10-11 were dropped, so each repeat now plays straight through both ending bars (bars 5 and 10 will sound on both passes — the class should skip the extra ending bar on the repeat). The pickup and final-bar time signatures were normalised to 4/4 (the bars themselves stay short) and the percussion clefs were changed to treble so the reader accepts them.