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提高农业基础知识课教学质量,必须扎扎实实地加强基础知识的教学和基本技能的训练。加强基础知识教学,首先,应讲清、讲活基本概念,使学生能触类旁通,举一反三。如我们讲到“合理密植”时,先从正面说明,指出适当密植,可以增加作物群体叶的总面积,最大限度地利用日光进行光合作用,使农作物获得丰收。而后从反面说明,让学生懂得,过度密植,作物枝叶挤在一起,空气阻塞,温度增高,光合作用便不能正常进行,而呼吸作用却进行得非常强烈,结果有机物的积累大大地减少,反而会造成减产。再进一步向学生指出:密植与农业“八字宪法”的每一个字有密切关系。这样,由表及里,讲清构造和机能的关系;由此及彼,说明相辅相成的关系;从正面到反面,说明利害关系,就能讲清、讲活概念。其次,概念要讲得完整、讲得正确,如果老师在课堂教学中,概念讲得含混不清,意义模棱两可,不仅造成学生学习上种种困难,而且容易使学生在掌握知识时,张冠李戴;回答问题时,牛头不
To improve the teaching quality of agricultural basic knowledge courses, we must solidly strengthen the teaching of basic knowledge and the training of basic skills. In order to strengthen the teaching of basic knowledge, first of all, the basic concepts should be made clear and live, so that students can comprehend by analogy and infer anything from the others. If we talk about “reasonable close planting,” we must first explain from the front, pointing out that proper close planting can increase the total area of the leaves of crop groups, maximize the use of sunlight for photosynthesis, and make crops harvest. Afterwards, from the negative side, students are taught that over-close planting, crowding of crops and leaves, blockage of air, increased temperature, photosynthesis can not be carried out normally, and the respiration is carried out very strongly. As a result, the accumulation of organic matter is greatly reduced, but will be greatly reduced. Causes a reduction in production. Further pointed out to the students: Close planting is closely related to each word of the “eight-character constitution” of agriculture. In this way, the relationship between structure and function can be clearly explained from the table and the inside; from this to the other, the relationship between the two is illustrated, and from the positive to the negative, the relationship between interest and interest can be explained clearly. Secondly, the concept must be complete and correct. If the teacher is in the classroom, the concept is ambiguous and ambiguous, which not only causes difficulties for the students in learning, but also makes it easier for the students to acquire knowledge; Zhang Guanli Dai; answer questions. When the cow head is not