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学生的学习兴趣是构成学习动机的主要心理因素,它是学生探求知识和获得能力的一种强烈”的内趋力。一名成功的教师,在教学中应注意培养学生的学习兴趣,化学教学亦然。实验是学生认识化学世界的窗口,而千变万化的实验现象对学生有着很大的吸引力,是激发学生学习兴趣,创设学习最佳情境的有效基础。如第一堂化学课,可把一张用酚酞试液写过“化学”两字的白纸让两学生帮助拿好,再将稀NaOH溶液用喷水枪向白纸喷射,白纸上立刻显出醒目的大红字“化学”学生无不惊叹化学的奇妙,再演示将浓H_2SO_4倒入蔗糖,随着玻璃棒的搅拌渐渐形成一
The student’s interest in learning constitutes the main psychological factor that constitutes learning motivation, and it is a strong internal force for students to explore knowledge and acquire abilities. A successful teacher should pay attention to cultivating students’ interest in learning and chemistry teaching. Also, experiment is a window for students to understand the chemical world, and the ever-changing experimental phenomenon has a great attraction for students, and it is an effective basis for stimulating students’ interest in learning and creating the best situation for learning. A white paper with the word “Chemistry” written on the phenolphthalein test solution was used to help the two students get help. Then the dilute NaOH solution was sprayed on the white paper with a water spray gun. The white paper immediately showed a striking red word “Chemical”. Students are amazed by the wonders of chemistry, and then demonstrated that H_2SO_4 is poured into sucrose, gradually forming a stir with the stirring of glass rods.