有这样一道数学试题:“甲乙两城相距300千米,一辆汽车以每小时60千米的速度从甲城开往乙城,行了3小时。这时距离甲城多远?”这道题并不难,但错误率很高,近85%。回想一下平时这种情况就经常有,只是,这种情况的发生常常被我们归结为学生的粗心大意,因而没有引起我们的重视,也没有引发我们的思考和研究。简单的题目做成那样,真是学生后悔,教师生气。这到底是为什么呢?难道仅仅是因为学生的粗心大意吗?作为教师,这时绝对 There is such a math test: "A two cities apart 300 km, a car at 60 kilometers per hour from the city to the city of B, for 3 hours .At this time from the distance? This problem is not difficult, but the error rate is high, nearly 85%. It is often recalled that this is usually the case. However, the occurrence of this situation is often attributed to the carelessness of our students and therefore has not drawn our attention nor triggered our thinking or research. Simple topics made that way, really regrettable students, teachers angry. This is why in the end? Is it just because of the carelessness of students? As a teacher, then absolutely