To be a good mother is to be a virtuous woman. Before being a virtuous woman, you must possess some qualities such as: not complaining, not comparing and not criticizing your husband.
There is a saying "the work of a woman starts in the kitchen and ends in the kitchen" am not in total agreement with that, if kitchen is the only abode for a woman, how do one wish a home will look like. Let's say the husband is jobless and the only means of survival is on her income, if not for her submission, such home can not be peaceful.
So, being a good woman (virtuous) there will be total peace in her home and also in her environment.