Follow your children's interests and help them learn from everyday life around them. You can take a child that is interested in your plumbing to a local plumbing supply store or to talk to a plumber. A child who is interested in how his body works can visit his doctor's office or a local children's museum to look at diagrams or models of the body. Try to get into the habit of asking your children the kind of questions that require them to think for themselves and come up with their own ideas or solutions to a problem. Then be sure she knows that you are seriously listening to her opinion.
Children learn through play.
Give them the chance to try out their ideas through experimentation with materials or dramatic play. For example, if your child is wondering how carpenters build stairs, he can experiment by building with blocks. Try to give him plenty of time to test out his ideas on his own. Answering your children's questions immediately instead of asking them for their ideas or what they think, first. Listening to them and respecting what they say will encourage them to share their thoughts more often.