言语交流是师生或生生交流沟通的一种重要形式,学生课堂发言状况反映了师生互动的深度与广度,学生踊跃发言是有效教学的标志之一。综观当前小学科学课堂中存在如此现象:课堂气氛沉闷,教师喋喋不休,学生沉默寡言,师生缺乏积极的互动交流,学生较少举手发言,即便个别学生被老师点名回答,也是语无伦次,或者干脆缄默不语。主动发言是学生的一项基本学习素养,踊跃发言是提高教学质量的保障。笔者在多年的小学科学教学中,十分关注学生的课 Speech communication is an important form of teacher-student communication or student-student communication. The status of students’ speech in the classroom reflects the depth and breadth of interaction between teachers and students. Students are encouraged to speak one of the most effective teaching methods. To sum up the current phenomenon of primary school science classroom: the classroom atmosphere boring, teachers chatter, students dull, teachers and students lack of positive interaction, students speak less raised their hand, even if individual students were named by the teacher to answer is incoherent or simply not silent language. Taking the initiative to speak is a basic learning accomplishment of students, and making active speeches is the guarantee to improve the teaching quality. The author in many years of primary science teaching, is very concerned about the class of students