简答实验法的主要内容。
正确答案及解析
正确答案
解析
实验法是在控制的条件下系统地操纵某种变量的变化，来研究这种变量变化对其他变量所产生的影响。实验法可分为实验室实验和自然实验两种。其优点在于能更好地发挥学生的主动性、积极性，有利于培养学生独立思维能力、口头表达能力，促进学生灵活地运用知识。缺点在于：运用实验法需要学生具备一定的基础知识、一定的理解能力和独立思考能力，因此实验法在高年级运用得比较多。
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