I am interested to make focus group discussion with school children parents on school and school activities. The main aim of this discussion is to identify hidden mechanism of schooling system in reproduction of social inequality. But I am still confused, which pattern or theme should I talk with them? Any suggestion, comments would be highly appreciated.

Could you ask them about their knowledge/experience of x, y and z? (whatever issues may be relevant to the topic - is there much literature in the area?)

Are you taking a grounded theory approach?

No I am not taking grounded theory approach. However, I wanted to know from them that how is schooling play negative role in society? for example- teaching ideologies of gender inequality, social inequality?
Will it be biased?