新课程标准的基本理念是以学生的发展为本,就是要让每个学生在学习过程中潜能得到充分地发展。为了实现这个目标,在教学中笔者通过创设情境来激发学生学习的积极性,向学生提供从事科学实验的机会,帮助他们在自主探索、合作交流过程中,真正理解和掌握基本的科学知识和技能,解 The basic concept of the new curriculum standards is based on the development of students, is to enable each student in the learning process to fully develop the potential. In order to achieve this goal, in teaching, the author stimulates the enthusiasm of students through the creation of situations and provides students with the opportunity to engage in scientific experiments to help them truly understand and master the basic scientific knowledge and skills in their own exploration and cooperation and exchange, solution