概念教学在培养学生逻辑思维中的先导作用云南邱卫三段论推理是一种逻辑思维形式，它是由两个包含着一个共同项的性质判断，而推出一个新的性质判断的推理。简例：１．容易导电的物体是导体；２．碳棒容易导电；３．所以碳棒是导体。小学生思考问题时大多直来直去，三段论... Conceptual teaching plays a leading role in cultivating students' logical thinking Yunnan Qiu Weisuan Segment Theory Reasoning is a form of logical thinking which is based on the judgment of two properties that contain a common item and introduces a new reasoning of qualitative judgment. Example: 1. Conductive objects easily conductive; 2. Carbon rod easily conductive; 3. So the carbon rod is a conductor. Most of the pupils think straightforward, syllogism ...