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根据儿童的认知特点,小学低年级一般都采用直观教学;到了高年级,直观教学相对少了,可能是因为教师们认为小学高年级学生的抽象思维已经有了很大的发展。但是我在高年级教学方程时,运用直观教学却收到了意想不到的效果。一、在比较两个概念时巧用直观【案例一】把所有的方程装在一个盒子里苏教版五年级下册第一单元“方程”的第一课时,方程与等式的关系是教学难点。因为方程与等式的关系比较抽象,有的学生不能很快理解韦恩图表示的两者
According to the cognitive characteristics of children, the lower grades in primary schools generally adopt visual teaching. At the advanced grades, there is relatively little visual teaching, probably because teachers think that the abstract thinking of upper-primary students has been greatly developed. However, when I was teaching in the senior grades, I received unexpected results through the use of visual teaching. First, in the comparison of two concepts clever use of intuition 【Case A】 put all the equations in a box Sujiao version of the fifth grade volumes of the first unit “equation ” the first lesson, the relationship between equations and equations Is difficult to teach. Because the relationship between equation and equation is rather abstract, some students can not quickly understand both Wayne diagram representation