You can take your baby outdoors and let him see animals with different shapes and abilities, such as dragonflies, butterflies, beetles, squirrels, voles, sparrows, magpies and snakes. You can ask your baby to roll up his sleeves, catch a ladybug and count its stars. You can also take a small shovel and dig a piece of soil to find the earthworm hidden inside; You can also catch cicadas with cobwebs and listen to their chirping. If you encounter a snake, tell your baby not to approach, so that he can learn to avoid danger and protect himself. In this process, the baby gives full play to his hands-on ability and answers all questions by himself. Parents should tell their babies to let them go after observing all kinds of animals, because they are hungry and sleepy, and they have to go home to find their mother to eat and sleep, that's all. Babies can unconsciously know all the common animals around them through laughter, and know whether they can fly or crawl, live in trees or hide underground, eat insects or leaves.