The Primary One children had completed the sounds up as far as th. The last 6 sounds are the hardest of the 42.

qu - is the sound at the start of the word qu-ack, qu-een, qu-ill

ou - is the sound at the start of the word ou-ch, ou-t, ou-r

oi - is the sound at the start of the word oi-l, middle of b-oi-l, c-oi-n, s-oi-l

ue - makes the sound of the letter name u - c-ue, f-ue-l, barbec-ue

er - makes the sound you hear at the end of mix-er, play-er, sing-er etc

ar - is the sound you hear in the middle of c-ar-d, h-ar-d, f-ar-m, b-ar-n

I hope this helps you to consolidate the last 6 sounds with your children.