Hi Puibpuib - I'm a working mom too. I will do revision w. my girl according to the Teaching Plan.
However, I found out that its quite hard to do revision everyday as school only teaches a bit each day (& that's reasonable) and if I try to "introduce" things to my daughter that were not taught at school. She will say techer not said/sang this yet and not willing to continue.
So, I can only try my best to sing, read w/ her as per the things that she thought it was taught.