For the babies who is 8 months to 12months 1.most babies are already have the desire of crawl during this period，even some of them begin crawling like the tortoise(terminology:龟爬式)，crawling like puppy(terminology:狗爬式)use their hands and knees.walking hold the wall,these crawls will promote their new 神经 Of brain .most babies starting crawl from tortoise to puppy and then walk with hold wall,and walk normally.but this process will be diffrent in diffrent babies. walking with hold the wall isnt equal walk.babies usually get all them for many months. all of that means we shold pay attention on security.1.ecace all the sharp conners,forexample:table,chair,cupboard,etc 2.keep the floor clean ,and offer a wild place for baby to crawl. 3.install security doors,allowed baby to take things from box or cupboard, these actions make their nerves of feeling (感觉神经)and nerves of sport（运动神经） growing well.and this is the important period of brain development. 4.Dont put them into the baby walker(婴儿学步车),they need crawl the more the better.baby walker will restrain them. 5.when they get the schedual of puppy's crawll,they usually walk around the table 、sofa and any other furnitures .