一、精心设计导入环节课堂教学要精心设计导入环节。好的导入如同桥梁,联系着新课与旧课;如同序幕,预示着后面的高潮和结局;如同路标,引导学生的思维方向。例如《毛细现象》一课,让学生把一朵纸花放到水中,观察有什么现象发生。由于毛细现象的原因,纸花慢慢在水中开放。当学生看到这一现象时,惊讶地拍手直叫:“纸 First, well-designed into the classroom Teaching should be carefully designed to import links. Good introduction as a bridge, linked to the new class and the old class; as a prelude, indicating the climax and ending behind; like the road signs to guide students in the direction of thinking. For example, ”Capillary Phenomenon“ lesson, so that students put a paper flower into the water to observe what happens. Due to the capillary phenomenon, paper flowers slowly open in the water. When students see this phenomenon, clapped in surprise: ”Paper