实物操作是幼儿学习数学知识,发展思维能力的基础和源泉。目前,许多教师对操作活动的媒介——操作材料认识不足,对如何提供材料缺乏研究和考虑,存在着机械地模仿他人,看别人放什么我就放什么的盲目性,手头上有什么就放什么的随意性,及材料种类单调,数 Physical operation is the basis and source of children’s learning of mathematical knowledge and development of thinking ability. At present, many teachers do not have enough knowledge of the operational activities of the media - operating materials, lack of research and consideration on how to provide materials, there is a blind imitation that imitates others mechanically, what other people put what I put, and what is on hand What kind of randomness, and monotonous number of materials