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一、教学目标科学概念:1.磁铁能吸引铁制的物体,这种性质叫磁性。2.磁铁隔着一些物体也能吸铁。过程与方法:1.根据材料设计实验,研究磁铁隔着纸、布、塑料片、铝片、橡胶片、薄木片等能不能吸铁。2.体会随着条件的变化,磁铁隔物吸铁的本领是如何变化的。情感态度价值观:体验学习科学的乐趣,在科学学习中尊重他人意见,敢于提出不同见解,乐于合作与交流。二、教学重难点1.理解磁铁的磁性含义。2.在实验中
First, the teaching objectives Scientific concepts: 1. Magnets can attract iron objects, this property is called magnetic. 2. Magnets through some objects can also absorb iron. Process and methods: 1. According to the material design experiment, study the magnets across the paper, cloth, plastic sheet, aluminum sheet, rubber sheet, veneer sheet can not attract iron. 2. Experience with the changing conditions, the magnet spacer magnetism how to change the skills. Emotional Attitude Values: Experience the fun of learning science, respect others’ opinions in science learning, dare to come up with different opinions and be willing to cooperate and exchange. Second, teaching heavy and difficult 1. To understand the magnet’s magnetic meaning. In the experiment