My daughter is four. She asks me things all day. Why is the sky blue. Why do we have to sleep. Why can't we have ice cream for breakfast. I don't always know the answers. But I try. Kids this age are like sponges. They soak up everything. They watch what we do. They listen to what we say. They copy us. This is how they learn.
You don't need special toys. You don't need fancy classes. You just need to spend time with your child. Talk to them. Play with them. Cognitive Development Activities For Preschoolers.