《科学课程标准》指出:“科学课程是以培养科学素养为宗旨的科学启蒙课程,学生是科学学习的主人,教师是学生学习活动的组织者、合作者和引导者”。亲身经历以探究为主的学习活动是学生学习科学知识的主要途径之一。在科学教学活动中,怎样引导学生有效探究?这是新课程标准对教师的教学要求。因此,教师一定要为学生提供充分的科学探究机会和材料,积极引导学生进行有效探究,使他们在学 The standard of science curriculum states: “Science curriculum is a scientific enlightenment course aimed at cultivating scientific literacy. Students are the masters of science learning. Teachers are the organizers, collaborators and guides of students’ learning activities.” One of the main ways in which students can learn scientific knowledge is to learn first-hand about learning activities. In science teaching activities, how to guide students to effectively explore? This is the new curriculum standards for teachers teaching requirements. Therefore, teachers must provide students with adequate opportunities for scientific inquiry and materials, and actively guide students to explore effectively to enable them to learn