This corresponds to $FDA3 in the ZX Spectrum version.

Used by little boy no. 3 in lessons $F7 and $FE; by little boy no. 4 in lessons $F6 and $FA; by little boy no. 5 in lessons $F6, $F9, $FA and $FF; by little boy no. 6 in lessons $F6 and $F8; by little boy no. 7 in lessons $F8, $F9 and $FE; by little boy no. 9 in lessons $F7 and $FF; and by little boy no. 10 in lesson $F7.