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科学研究发现:人们接受到的外界信息70%～80%来自于视觉信息。从某种意义上说,师生沟通中的无声语言交流比有声语言交流更为重要。在小学科学实验教学中,教师担心学生做不好实验,总是不厌其烦地指导、提示、小结。大量有声语言的运用,大大降低了学生实验探究的兴致,不利于自主探究能力的培养。因而,实验中减少教师的有声语言,配合以无声语言的交流,给学生创造自主探究的情境,能够激发学生的学习主动性,给学生一个完整的实验
Scientific research found that 70% to 80% of the external information people receive comes from visual information. In a sense, silent language communication between teachers and students is more important than sound language communication. In the elementary science experiment teaching, the teacher fears the student does the bad experiment, always takes the trouble to guide, the prompt, the summary. The use of a large number of voiced languages greatly reduces the interest of students in experimental exploration, which is not conducive to the cultivation of independent inquiry ability. Therefore, reducing the teachers ’vocal language in experiments and cooperating with the exchange of silent language can create a situation of independent inquiry for students, which can arouse students’ learning initiative and give students a complete experiment