Problem Matrix Design Of Chemistry Teaching Plan Based On Problem Continuum

Learning starts from thinking,and thinking originates from doubts.Questions are an important way to stimulate students' thinking.Junior three students just contact chemistry,in view of the author's school use of teaching case teaching situation,how to change the existing teaching case of the inherent model,the use of problem design concept to guide the teaching case teaching,training students to solve the problem ability? This is the reason why this article chooses the topic.The theory of "problem continuum" established by American scholar j.Maker points out the direction for the research of this subject.This paper first sorts out the origin of the problem classification system in the theory of "problem continuum" and clarifies the connotation of the concept of "problem continuum matrix".On this basis,aiming at the current problems in the design of chemistry teaching plans,and combined with the characteristics of junior chemistry subject and the requirements of chemistry curriculum standards,the "junior chemistry teaching plan problem matrix" case is designed.Then,using the classroom observation scale,the effectiveness of the designed "junior chemistry teaching plan problem matrix" was observed and analyzed.Finally,the methods and strategies of problem matrix design in junior high school chemistry teaching cases are preliminarily summarized.The main conclusions of this paper are as follows :(1)the problem matrix based on problem continuum is conducive to creating diversified problem situations;(2)the problem matrix based on the problem continuum is conducive to transforming the content into open questions;(3)the problem matrix based on the problem continuum is conducive to the realization of the hierarchical nature of the problem;(4)the problem matrix based on the problem continuum is beneficial for teachers to deal with non-preset problems.