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分数、百分数应用题的复习,应系统地引导学生把平时分散学习的数学知识进行梳理、沟通、巩固、提高,使之“竖成线、横成片、织成网”,进一步培养学生解答应用题能力。一、沟通内在联系,组建认知结构学生对分数、百分数应用题的学习是在原有的整数、小数应用题的认知结构的基础上进行的,新知识的输入使原有的认知结构扩充或改组,形成新的认知结构。根据学生的这个认知规律在复习中要着重帮助学生在下述三个方面沟通联系。
Points, the percentage of the application of the review, should systematically guide students to disseminate the usual mathematical knowledge to sort out, communicate, consolidate, improve, so that “vertical line, into a film, woven into network” to further train students to answer applications Problem ability. First, the communication of internal relations, the formation of cognitive structure Students on the score, the percentage of application questions in the original integer, fractional application of the cognitive structure based on the new knowledge input to the original cognitive structure to expand Or reorganization, the formation of a new cognitive structure. According to the student's cognitive rules in the review should focus on helping students in the following three aspects of communication.