Study On The Teaching Design Of Mathematical Propositions In Junior Middle School Based On Example Learning Theory

A mathematical proposition is a judgment statement of a mathematical object expressed in mathematical language.Proposition junior middle school mathematics teaching in junior middle school teaching content is very important,the basic class of proposition is math,proposition is the composition of axioms,theorems,formulas,principles,reflects the concept and the connection between the concept,in turn,the concept and reasoning process is the expression form of propositional,propositions and concepts are interdependent,mathematical proposition teaching process contains a number of important ways of thinking and reasoning ability,is to cultivate students' thinking ability and mathematics accomplishment,a kind of important means in proposition learning to lay a solid foundation,to help students build to correctly understanding of mathematics learning,and help students improve the learning efficiency in the process of learning advanced knowledge,Mathematics proposition teaching is the foundation of mathematics curriculum.At present,there are some problems in the teaching process of mathematical propositions in China,such as teachers' backward teaching ideas and lack of teaching strategies.This paper mainly discusses the situation of propositional teaching in middle school from two aspects of theory and practice,aiming at making teachers raise their awareness of mathematics propositional teaching,improving the teaching quality,reducing students' academic burden and stimulating students' interest in learning.Sample learning,is a kind of imitation learning,imitation can be understood as a kind of near transfer of sample learning,it requires students to take the initiative to summarize and summarize the knowledge and methods hidden in the sample,so as to get the general method to solve the problem.Therefore,this paper,starting with propositional teaching,puts forward some thoughts and suggestions on the teaching design of junior middle school mathematics propositional teaching.With the support of sample learning theory,through experiments,interviews and other strategies,we understand students' feelings on propositional learning and explore the guiding significance of sample learning theory on mathematics propositional teaching.Constructivism learning theory has been introduced in this paper,the basic principle such as meaningful reception learning theory,to the teaching of mathematical proposition in under the guidance of the theory,the teaching of the middle school mathematics proposition sample selection should follow five principles: diversity of sample selection,sample and practice approaches,sample structural principle,sample information integration principle,the principle of self explanation.This paper argues that the teaching of mathematical propositions should pay attention to students' learning intentions,and in the introduction stage of propositions,on the basis of the original knowledge,use the "advance organizer" strategy to activate the connection point between the old and new knowledge,and impart propositions to students in the form of production.In the propositional proof stage,we should not only consider the cognitive characteristics of students,but also consider the relationship between the propositions we have learned and the original knowledge.Different teaching strategies should be adopted for different types of propositions.In the application stage of proposition,by analogy with relevant knowledge and using variant training,the proposition can be transformed into a production system and the effectiveness of proposition teaching can be improved.In the specific teaching process,we should also strive to be student-oriented,pay attention to the reconstruction of knowledge and a good learning situation.Teachers need to deepen students' understanding of mathematical propositions on the basis of students' cognitive development level,actively play the role of teachers in learning,and maintain effective two-way interaction between teachers and students and students.Through analyzing the propositional structure,suitable for the sample as a supplementary means,elaborate organization teaching link,the sample teaching,organizing students to discuss,configure corresponding after-school exercises,etc.,through experimental method,discuss the sample learning theory in the teaching of mathematical proposition effectiveness and teaching design,hoping to provide some references for first-line teachers and some valuable information,enlightenment and reference to the teachers teaching can play a role.