梯形是人们非常熟悉的几何图形之一,在生产、生活中有着极为广泛的应用。学生在小学阶段已经对梯形有了一定的认识,但进入初中后,由于教学内容发生了变化,学习目标有了相应的提高,在学习梯形这一内容时学生感到不是自己想象得那么容易,尤其在梯形的有关计算、推理和应用方面还会产生思维障碍。为此,数学教师应该认真分析原因,找准对策,及时解决。 Trapezoid is one of the most familiar geometric figures people have in the production, life has a very wide range of applications. Students in the elementary school have a certain understanding of the trapezoid, but after entering junior high school, due to changes in teaching content, learning objectives have been increased accordingly, learning trapezoidal this content is not easy to imagine yourself, especially There are also mental retardations in trapezoidal calculation, reasoning, and application. To this end, mathematics teachers should carefully analyze the reasons, identify the countermeasures, timely solution.