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实验材料是小学生进行探究式学习的必要条件。学生通过对实验材料的思考和操作,获取科学事实,学习科学方法,锻炼科学思维,培养科学素养。因此,实验材料准备的丰富性、选择的典型性、呈现的科学性、操作的有效性,对激发学生学习科学的兴趣,实现有效探究与概念的双螺旋发展有着极其重要的作用。
Experimental material is essential for inquiry-based learning of pupils. Through the thinking and operation of experimental materials, students acquire scientific facts, learn scientific methods, exercise scientific thinking and cultivate scientific accomplishments. Therefore, the richness of experimental materials preparation, the typicality of choice, the scientificity presented and the effectiveness of the operation play an extremely important role in stimulating students’ interest in learning science and realizing effective exploration and development of the concept of double helix.