从人类磨制石器、钻木取火开始,技术就为了满足人类需要而开始了它的历史旅程。在苏教版小学科学教材中,占比并不多的技术内容大多是指建筑结构以及建筑物上(构筑物)承担重力或外力部分的构造。一个牢固的结构要求材料结实、构件连接物质量好、构件的形状及构件组成的整体方法好。因此,根据不同的结构,人们选择的材料不同,选择加固材料的方式不同,选择的连接方式也各不相同。以设计一张小凳子为例,人们可以选择厚纸板、五夹板、木 Beginning with its history of humankind grinding stone and drilling firewood, technology has embarked on its journey of history to meet human needs. Most of the technical contents which account for a small proportion of the science textbooks of the primary school of the Soviet version refer to the structures that the building structure and the building (structure) bear the gravity or the external force. A solid structure requires strong material, good structural quality of the joiner, good shape of the member, and a good overall method of assembly. Therefore, depending on the structure, people choose different materials, choose different ways to reinforce materials, and choose different connection methods. To design a small stool, for example, people can choose cardboard, five plywood, wood