A sister recently asked for help on teaching a toddler/preschooler. Teaching preschoolers is not as much teaching as creating a right environment. Although learning styles are different for all ages, but preschoolers are simply too unique. So you will need to try a lot of different types of activities before you discover what you child likes the best and what is working for you. Below is a list of some sites I found that have got different ideas on incorporating learning in a day to day life to give you a head start.
there are thousands of preschool blogs and sites on net, these are just the first I found. So if you cant find anything to help you in here, you can try searching for preschool activities on net.