[教学要求]1．通过操作活动“做数学”,引导学生经历探究分数意义的过程,掌握分数的概念,并理解单位“1”的含义。 2．认识分数各部分名称及分子、分母表示的意义。 3．培养学生分析、综合、比较、抽象、概括等初步的逻辑思维能力。 4．体验学习数学的成功和愉悦,培养学生学习数 [Teaching requirements] 1. Through the activities of “doing mathematics,” guide students through the process of exploring the significance of scores, grasp the concept of scores and understand the meaning of the unit “1”. 2. Understand the meaning of each part of the score and numerator, denominator. 3. Students analyze, synthesis, comparison, abstraction, generalization and other initial logical thinking ability. 4. Experience the success and pleasure of learning mathematics, develop student learning numbers