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列方程解应用题是在学生熟练掌握了算术法解应用题的基础上进行教学的,学生初学时,往往受算术解法的束缚和干扰,很难形成正确的列方程解题的思路。因此,教师要有超前准备,做到心中有数,提前采取措施,以便进行针对性的教学。超前准备一般有如下几个方面:一、心理障碍方面的预见性由于学生长期运用算术法解应用题,而列方程解应用题的解题思路与算术法迥然不同,所以学习新知时,很易受思维定势的消极影响,这是学习列方程解应用题的最大心理障碍。为此,教师必须了解学生的心理状况,采取如下的措施扫除心理障碍,为学习新知作好铺垫:1.在教学“用字母表示数”时,渗透方程。如;六年制课本第八册(下同)第3页例1“(1)
Column equation solution application problem is based on the students mastered the arithmetic solution application problems based on the teaching, students beginners, often by the shackles of arithmetic solutions and interference, it is difficult to form the correct solution to the problem of column equations. Therefore, teachers should be prepared in advance, be aware of, take measures in advance to carry out targeted teaching. Advance preparation in general has the following aspects: First, the psychological aspects of the predictability Because of the long-term application of arithmetic algorithms to solve the problem, and solve the problem solving equations and arithmetic algorithm is very different, so when learning new knowledge, it is easy By the negative impact of the mindset, this is the biggest mental obstacle to learning how to solve equations. To this end, teachers must understand the psychological status of students, take the following measures to remove mental disorders, to pave the way for learning new knowledge: 1 in the teaching ”in alphabetic letters “ infiltration equation. Such as; six-year textbook eighth book (the same below) Page 3 Case 1 ”(1)