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问题情景是教学实践的情感环境,是教学活动发生和发展的背景环境。问题情景能够激发和促进学生的情感活动、认知活动和实践活动;能够给学生提供丰富的学习素材,有效地改善教与学;能够满足学生发现和发展的心理需求,激发学生去积极思考、主动探究,不断地发现问题和解决问题,并在解决问题的过程中自主建构知识,丰富化学情感,体验化学的价值。因此新课程改革特别强调通过创设恰当的问
The problem situation is the emotional environment of teaching practice and the background environment for the occurrence and development of teaching activities. Problem scenarios can stimulate and promote students’ emotional activities, cognitive activities and practical activities; to provide students with a wealth of learning materials to effectively improve teaching and learning; to meet the psychological needs of students to discover and develop, to stimulate students to think positively, Take the initiative to explore, discover problems and solve problems constantly, and independently construct knowledge, enrich chemical emotions and experience the value of chemistry while solving problems. Therefore, the new curriculum reform places special emphasis on creating appropriate questions