He patiently stuck every piece by himself after he understood my instructions to complete one hue at a time.
I thought that was really quite remarkable since it is a rather tedious craft for this age and requires a fair amount of patience and hand/eye coordination.
Accompanying the craft was a new rhyme which he learnt really quickly after we sang it just thrice. Now he sings it everyday when he is playing alone. It is really the flavour of the week!