四年级数学认识几分之几教学设计#四年级数学:#认识几分之几(教学设计)#Mathematics is a tool subject, it is the basis for learning other subjects, and it is also a subject that improves people#s judgment, analysis, and comprehension abilities.#( 数 学 教 案 )#学 校:#_#年 级:#_#教 师:#_#教案设计 / 精品文档 / 文字可改#