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俗话说得好“万事开头难”。马克思也曾经说过“一切事情的开头总是困难的”。平面几何入门教学也是如此。在多年的教学实践中,我发现中学生数学成绩两极分化现象的出现,大多是从平面几何的学习开始的。因为在没有学习平面几何知识之前的数学学习中,学生主要是与“数”打交道,可是平面几何却以“平面图形”作为研究对象,学习时要依靠逻辑思维。这种由“数”到“形”的转变,学生一下子难以适应。因此,切实做好平面几何入门教学工作,是提高学生的数学成绩和提高教学质量的关键。下面谈一谈在平面几何入门教学方面的
As the saying goes “everything is hard at the beginning”. Marx once said that “the beginning of everything is always difficult.” Plane geometry is also true of teaching. In many years of teaching practice, I found that the emergence of secondary school students’ math achievement polarization mostly starts with the study of plane geometry. Because in the maths learning before learning plane geometry knowledge, students mainly deal with “number ”, but the plane geometry is “plane graphics ” as the study object, learning to rely on logical thinking. This change from “number ” to “shape ”, students suddenly difficult to adapt. Therefore, to do a good job of plane geometry beginners teaching is to improve the students’ mathematical performance and improve the quality of teaching the key. Here to talk about the introduction of plane geometry teaching