古人言万事始为贵。开头最难,这就好比唱歌时找调子,需要在前奏时用心去感受寻找,一旦找到,后面的歌唱就完成了一半。科学教学也是如此,若课堂导入不成功,无法吸引学生注意力,那么接下来的教学就难以进行。经验丰富的教师,对课堂导入驾轻就熟,能让学生快速投入特定的教学活动中。情境导入法,身临其境自主学习教育学家布鲁纳提出,“刺激有助于学习,而对所学内容的兴趣是最理想的刺激”。科学课程最基本的特点是“源于生 The ancients say everything is expensive. The hardest at the beginning, which is like looking for a tune when singing, in the intentions to feel hard to find, once found, behind the song is completed in half. The same is true for science teaching. If the lessons are not imported successfully and can not attract students' attention, then the next instruction will be difficult. Experienced teachers, familiar with the introduction of the classroom, allowing students to quickly put into a specific teaching activities. Contextual importation, immersive autonomous learning pedagogic Bruner proposed that ”stimuli contribute to learning while the interest in what is learned is the best stimulus.“ The most basic feature of the science curriculum is that ”students are born