The Design And Practice Of "question Chain" In Junior High School Chemistry Teaching From The Perspective Of The New Curriculum Standard

Questions are the triggers for thinking,Combined with the talent training plan from the perspective of the new curriculum standard and guided by the curriculum syllabus,this paper designs the chemistry teaching problem chain and applies the "problem chain" to teaching practice,aiming at cultivating students' learning ability,innovative thinking level and problem-solving ability.Problem teaching has a long history,which can be traced back to Socrates and Confucius.Later,it grew up on the basis of Dewey's problem teaching and thinking theory,Vygotsky's zone of proximal development,Zhu Zhiting's "Five He" problem design and many other theories,forming the present "problem chain" teaching."Problem chain" teaching is to design a series of intrinsically related problem chains and apply them to classroom teaching.The design of the "chain" is a principle to be found,for example: the resonance between teachers and students,the principle of the zone of proximal development,driven principle,level principle,the generative principle,etc.,according to the principle of design in combination with problems related to chain design strategy: contextualized strategy,interesting strategy,analogy strategy,decomposability,exploratory,design problems that interlocking chain.Taking the Chemistry of Grade 9Volume 1 of PEP as the design content,the problem chain is designed and the practice teaching is carried out,taking the township middle school of Liangping District,Chongqing City as an example.Feedback information of the survey and research: In the teaching of "question chain",students think more actively than traditional teaching in class.Students are brave to express their views,communicate and discuss,and the classroom atmosphere is active.By introducing situational question chain into class,students can fully realize the charm of chemistry and deepen their interest in learning chemistry.Students solve problems by doing hands-on work in the experimental inquiry-type problem chain.Students' response problem chain teaching minimizes complex problems,has clear logic,and is convenient to understand and construct knowledge.The results of the experimental class are obviously better than those of the control class.Through the research and summary of the problem chain teaching is indeed helpful to improve the students' attention,stimulate the enthusiasm of the students to the chemistry learning,and produce the drive;The problem chain teaching is beneficial to the development of students' thinking level and the cultivation of innovative talents with comprehensive quality.It can cultivate students' ability to discover,explore and solve problems.At the same time,it can also improve the professional level of teachers.