談启发式教学法

来源 :数学通报 | 被引量 : 0次 | 上传用户:dfvgb345g33
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
我组在教学实践中贯彻启发式教学法,初步采用了如下一些做法: 1.引而未发,跃跃欲试。如能充分引起学生学习的兴趣,课堂的效果无疑是良好的。所以在一课的开始,教师要设法使学生处于引而未发跃跃欲试的状态,换句话说,教师必须在开始上课时做一些必要的工作,不仅要使学生了解这一课要学些什么,尤其要能使学生处于迫切要求学好那些内容的精神状态。也就是充分调动起他们的旺盛的求知欲。怎样才能做到这一点呢?根据教材内容一般可有如下几种方法: (1) 从实际引入。根据学生的年龄特征和不同的生活经验,从生活中就地取材,如讲近似计算,可举一些学生所熟悉的数量,象灌云县的人口统计、某生产队的粮食产量统计,或者由几个学生分别测量教室里黑板的长度等等。先让学生了解在生产和生活中所接触的大量事物中,近似的量比精确的量要多,从而感到有学习近似数的必要。又如讲无理方程,可从一个实际问题出发,例如:“教具制作小组某同学用一条30厘米长的铁丝弯成一个直角三角形,使它的一条直角边等于5厘米,应该怎样弯法?”(设另一条直角边为x厘米列出方程为5+x+(25+x~2)~(1/2)=30)使学生知道解 My group carried out the heuristic teaching method in the teaching practice and initially adopted the following practices: 1. Insist, and eager to try. If you can fully arouse students’ interest in learning, the effect of the classroom is undoubtedly good. So at the beginning of the lesson, teachers try to keep the students in a state of hunger. In other words, teachers must do some necessary work when they begin classes, not only to make students understand what the lesson is going to learn. In particular, students must be placed in a state of urgency that requires learning the content. It is to fully mobilize their exuberant thirst for knowledge. How can we do this? According to the content of teaching materials, there are generally the following methods: (1) From the actual introduction. According to the student’s age characteristics and different life experiences, students can draw materials from their lives. For example, if they say approximate calculations, they can refer to the numbers that students are familiar with, such as the statistics of the population in Guanyun County, the food production statistics of a production team, or Several students measure the length of the blackboard in the classroom and so on. First of all, let the students understand that in the large number of things that are in contact with production and life, the approximate amount is more than the precise amount, and thus feel that there is a need to learn the approximate number. Another example is to talk about unreasonable equations, starting from a practical problem. For example: “A classmate of the teaching aid production team used a 30 cm long wire to bend into a right-angled triangle so that one of its right-angled edges equals 5 cm. How should it be bent?” (Set another right-angled side to x cm and list the equation as 5+x+(25+x~2)~(1/2)=30) to let students know the solution
其他文献
《张衡传》中说张衡“常从容淡静,不好交接俗人”,这个“从容淡静”高二语文课本无注,《古代散文选》(上册)也无注。但省编《教学参考资料》有一个不注之注的译文:“他素常
《美国法典》第5324节规定的拆分现金交易罪是美国反洗钱刑事立法的重要组成部分,有效地维护了大额交易报告制度体系的完整性。中美在犯罪观念上存在本质的区别,美国的立法未
全国高等学校统一招生的试题,应该紧扣中学教学大纲(或复习大纲)、根据考生的实际情况,使能从答卷的得分中正确反映出考生知识水平和能力高低的顺序,以便择优录取;同时,也要
常用试剂重量百分浓度溶液的配制计算问题,书本上没有介绍过完整的函数关系式,学生在计算中常会出现错误。现把笔者整理出来的两个基本函数关系式介绍如下。 The formulati
论述了我省发展鲑鳟鱼养殖的优势和前景,分析了制约我省鲑鳟鱼养殖产业发展的瓶颈,提出了今后加快鲑鳟鱼养殖产业发展的若干建议。 The advantages and prospects of the de
Ⅰ历史主义是一种现代意识,启发和标领着现代精神,也是现代早期以还世界范围内的时代精神。舍却历史主义的现代秩序及其意义体系,是不可想象的,也是不可能的。不是别的,正是
为了学习借鉴兄弟省海洋渔业的先进技术和经验,开阔视野,搞好我区海洋渔业生产,根据自治区水产局领导的指示精神和沿海有关单位的要求,由自治区水产局海洋渔业处组织,北海市
对唇和花进行了网箱养殖效果对比试验。结果表明:在蓄水池内搭建网箱,分别放养平均规格38.7g/尾和39.1g/尾的Ⅰ冬龄唇和花冬片鱼种,放养密度0.98kg/m2,投喂饲料粗蛋
一、水产业是大农业的有机组成部分,江河渔业又是浅水渔业不可忽视的重要组成部分,特别是对池塘、水库相对缺乏的山区来讲,开发利用江河发展淡水养殖更具有特殊重要的现实意
斑点叉尾(鱼回)(Ictalurus Punctatus)属鲶形目(Sfluriformes),(鱼回)科(Ictalums)。是我区近几年来引进并大力推广养殖的淡水食用鱼类品种。其人工繁殖技术在区内目前仍鲜