研究性学习是指教师在教学中不把现成的结论告诉学生,而是让学生在教师的指导下主动地发现问题、探究问题并获得结论的学习过程。因此,在进行研究性学习时,教师就要注意创设问题情境来激发学生的探究欲望,而且设计的问题要与学生身心特点和知识层次相适应,以使学生能够运用所学的知识和已有的生活经验,通过实验探究来获得新的知识和技能。【案例】“复分解反应发生的条件”的教学内容。教材要求通过观察和分析几个酸、碱、盐之间的复分解反应 Research-based learning means that teachers do not tell the students about the ready-made conclusions in teaching. Instead, they enable students to actively discover problems, explore problems and obtain conclusion learning processes under the guidance of teachers. Therefore, when carrying out research-based learning, teachers should pay attention to creating problem situations to stimulate students ’desire for inquiry, and the design problems should be adapted to students’ physical and mental characteristics and knowledge levels so that students can use the knowledge they have learned and the existing Of life experience, through experimental exploration to acquire new knowledge and skills. [Case] ​​ “The condition of metathesis reaction ” teaching content. Textbook requires observation and analysis of several acid, alkali, salt between the metathesis reaction