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本文结合《只有一个地球》的教学实践,论述如何搜集、筛选课外资料并运用于教学,以提高教学效果。文章指出,要紧扣教学目的搜集课外资料,从多渠道、多形式、多角度、多层次入手,引导学生围绕教学目标,通过书本、网络、报纸以及发生在身边的事例等众多渠道,广泛搜集以图片、图表、图画、视频、照片、文字资料等载体所呈现的相关知识,让学生为学习课文作准备,并养成搜集资料的习惯,提高搜集、处理、运用资料的能力。文章指出,要针对教学难点精选课外资料,如利用图片资料使抽象的问题形象化,引入课外知识使理性的问题感性化,参照生活经验使模糊的问题清晰化,从而突破教学难点。文章指出,要突出教学重点运用课外资料,如让学生朗读课文的重点内容,理解关键词语,体会重点词句的表达效果及遣词造句的精妙;在学生熟悉课文的基础上,从课外资料中精选图片、视频资料让学生观看,通过美与丑、“原本”与“破坏”形成强烈的对比,学生心灵受到强烈震撼;让亲身体验过环境污染对生活造成的影响或甚至亲身经历过环境污染事故的学生上台现身说法。教学资料的无限性与教学课时的有限性永远是一对矛盾,解开这一“死结”的唯一办法就是,着眼于实现教学目标,着重于突破教学重点,着力于解决“屏障性”难点,对无限的课外资料进行合理的取舍。“舍”与“得”相生相克,相辅相成,真正把握了“舍”与“得”的机理和尺度,选得准用得好有限的课外资料,便等于把握住了打开“成功”之门的钥匙。
This article combines the teaching practice of “Only One Earth”, discusses how to collect and screen extracurricular materials and apply them to teaching in order to improve the teaching effect. The article points out that it is necessary to collect extra-curricular materials in close connection with teaching purposes and start with multi-channel, multi-form, multi-angle and multi-level teaching so as to guide students around the teaching objectives and extensively collect them through books, the internet, newspapers and the stories that occur around them Students should be prepared for the learning of the lesson by drawing on pictures, graphics, drawings, pictures, videos, photos, written materials and other carriers, and develop the habit of collecting information and enhance the ability to collect, process and use the information. The article points out that extracurricular information should be selected according to the difficulty of teaching, such as using image data to visualize the abstract problem, introducing extracurricular knowledge to sensitize the rational problem and clarifying the vague question according to the life experience so as to break through the teaching difficulty. The article points out that it is necessary to highlight the focus of teaching the use of extra-curricular materials, such as allowing students to read the key elements of the text, to understand the key words, to understand the expression effect of key words and sentences to create the exquisite; on the basis of the students are familiar with the text, selected from extra-curricular data Pictures and video materials allow students to watch through strong contrasts between beauty and ugliness, “original” and “vandalism”, and students’ hearts are strongly shocked; they can experience the impact of environmental pollution on their own life or even personal experience Students who have experienced environmental pollution have come to power. The limitless teaching materials and teaching hours is always a contradiction between the two, the only way to solve this “death knot” is to focus on the realization of teaching objectives, focusing on breakthrough teaching focus, focus on solving the “barrier ”Difficulties, a reasonable choice of unlimited extra-curricular information. “Homes ” and “get ” relatives complement each other, complement each other, truly grasp “homes ” and “get ” mechanism and scale, the selection of well-limited and limited extra-curricular data, it is equal to grasp Open the key to “Success” door.