九年义务教育六年制小学自然第六册教材介绍人民教育出版社自然室蔡矛（一）知识内容１．人体：在低年级认识了人体外形结构的基础上，指导学生认识骨胳、关节。肌肉的名称、部位、作用和保健知识。包括第１。２、３课。２．土壤：在低年级认识了砂和粘土的性质的基础上，... Nine-year compulsory education Six-year primary sixth nature textbook introduction People's Education Publishing House Nature Room Cai spear (a) of the knowledge content 1. Human body: In the lower grades recognize the body shape and structure, based on the guidance of students to understand the bones, joints. Muscle name, location, function and health knowledge. Including the first 1.2,3 lessons. 2. Soil: In the lower grades on the basis of understanding the nature of sand and clay, ...