It's not easy to listen to someone talk about something which you are totally unfamiliar with. Most of the time, couples do not work in the same industry or in the same area of expertise. Try to listen and understand. The first few times may be difficult but as you understand more, you will find it easier. Participate in your child's school activities.
Schools nowadays provide more than an education to children.
These are good ways to spend time with your children and let them know that you care. Visit a park or some nature reserve. If you are married, bring the family along and have a picnic. Sometimes seeing each other too often may not be that healthy for a relationship. Invite friends and family over for lunch or dinner some days.