| Mathematics teaching, the concept, formula, theorem is presented by mathematical symbols, and most of the algebraic sign. So, to learn algebra symbols in mathematical learning is particularly important. Algebraic sign is not only the constituent elements of mathematics knowledge, more powerful tool for students mathematics study further.The algebraic sign of high school as the basis of mathematical knowledge, is the foundation of learning high school math, high school students after the follow-up study of scientific tools. University level math has higher requirements on algebraic symbols, so high school needs to lay a solid foundation. But, after my preliminary observation and communication with high school math teacher found that after the present stage the algebraic sign of high school students learning ability to master is not ideal, this ability is divided into two aspects of algebraic symbols understanding and said. Algebraic symbols, on the one hand, students can’t fully understand the significance of algebraic symbols for many students memory, understanding is not clear. On the other hand, even if the students understand the meaning of the algebraic sign, also can’t to say well and application. So high school algebra symbolic understanding and said the study is of great significance, both to enrich the study of the theory of the algebraic sign system, can also through the investigation and analysis of the status of high school algebra symbolic learning ability, puts forward some proposals to the high school mathematics teaching and reference.First of all, this paper carried out a large number of high school algebra symbolic understanding and said the theory research. On the basis of extensive literature data, introduces the development history of algebraic symbols, the paper analyzes the causes of learning disabilities high school algebra symbols, the characteristics of high school algebra symbolic learning, discusses the symbols, mathematical symbols, the algebraic definition and the classification of algebraic symbols, also introduced the high school algebra symbolic understanding process of three stages: symbol recognition, semantic analysis, structure, process of high school algebra symbolic representation of three stages: preparation, writing clear meanings, symbols, for later research laid a solid theoretical basis.Then, in this paper, the high school algebra symbolic understanding and said has carried out detailed empirical research. This article, based on the algebraic sign of higher content of the questionnaire, the high school stage as test dimension of algebraic symbols understanding and representation, respectively for senior students, high school science and liberal arts students are tested, by analyzing the data, on each dimension compared with high school students, students and the school of arts living, the difference between boys and girls and analyze reasons, find out the high school students in each stage in understanding and said learning difficulties. Then combined with the interview, according to the answer of the questionnaire, and the thinking process of students when to solve the problem, find the reason for the error of students with learning disabilities. Then interview experienced senior teachers, from the perspectives of teachers of high school algebra symbolic understanding and learning difficulties and teaching strategies. With the aid of excel software, the understanding of high school algebra symbols and conducted in-depth study of all aspects of work. Finally, this paper comprehensive theoretical analysis and empirical research, and from the present situation of high school algebra symbolic understanding and said learning difficulties existing in the two aspects, the research conclusion. From the perspective of teachers and students point of view, gives advices on the teaching of high school algebra symbols and learning strategies. Teaching suggestion: define the symbols of professor clear, points out the form, significance, scope of symbol, memory law, when the symbols to solve the problem of fault point, with the difference in easy to mix, etc.; Pay attention to the specification blackboard writing, students are required to writing; Homework to make normative corrections; Emphasized the importance of learning method, to change the wrong topic not only emphasize on the surface of the process and accurate answer, should also let the students from algebra symbolic significance on the understanding of more attention; After finished new lesson to have specific training for new symbols; Good attention to cultivate the students’ mathematics learning habits, pay attention to penetration mathematical thinking methods, topic consciousness; Attaches great importance to the students’ ability of using the algebraic sign language expression. The definition of learning strategies: the symbolic understanding; Symbol, using the method, the application scope of specification when writing, accurate; After listening to timely training to strengthen their memories; To change the wrong topic, take students talk to each other between strategy; Symbols involving knowledge also pay special attention to; Get into the habit of with text language algebraic sign language. |
