Mix and Match
Nothing beats a sorting toy for teaching your tot about size and shape. Another easy way to introduce these ideas is by sorting familiar objects. For example, fill a small bowl with some Cheerios and Goldfish. One at a time, take out a Goldfish and put it in a pile; then take out a Cheerio and put it in a separate pile. You can do this with anything -- different-color socks, toy cars, or blocks. After his first birthday, your toddler may be able to do this activity on his own.