What is the best way for young parents to teach modern Pinoy kids old school values that are traditionally shared by our lolas and lolos?

In my opinion, the best way to teach a child any form of values (old school or not, regardless of culture) is to lead by example. If the parents don't practise their traditions, then it's very unlikely the child would. Children learn best from example and emulation so be a great role model for them and they will grow up to be just as awesome :)