In the 265438+20th century, information technology with computer and network communication as the core has been widely used in all fields of society, and the ability to acquire, analyze, process, publish and apply information will become an important symbol to measure the basic ability and cultural level of modern people. It has become an important content and task of education in the new century to cultivate students' information literacy and improve their ability to process and use information. Improving students' ideological quality and cultural quality in an all-round way and developing students' ability are forming * * * knowledge among educators. A large number of facts show that modern information technology education means plays an extremely important role in promoting the reform of teaching concepts and teaching forms.
The learning mode and teaching mode implied by these new trends of computer application in education all reflect the viewpoint of cognitive learning theory, and students are regarded as active participants in the process of knowledge construction. Learners should construct knowledge through their own experience. These new applications emphasize the learning process and meaningful learning, and emphasize that many learning goals should be achieved through students' active acquisition of materials. In these learner-centered learning models, teachers should play the roles of instructors, promoters and consultants, which is a new challenge for teachers.
The most fundamental thing in the reform of mathematics teaching is to change the teaching concept and establish the student view of modern teaching. The traditional view of students in teaching mainly understands mathematics learning as learning mathematical knowledge created by predecessors, and is used to equating mathematics with the collection of mathematical knowledge. Mathematics teaching is mainly about teachers imparting knowledge to students, but students' consciousness of "using mathematics" is very weak. With the change of educational concept, the concept of mathematics teaching has also changed;
First, from "most students have low standards, a few students have high standards, and all students have high standards."
Second, "from the authoritative mode based on imparting knowledge, examples and exercises to the teaching method with students as the center and students' encouragement and active exploration".
Third, "from only emphasizing' paper and pencil' calculus to making full use of computers."
Fourth, "from the unique attention to' mechanical' skills to the cultivation of extensive mathematical ability."
This new concept of mathematics teaching has become a breakthrough in teaching reform. In teaching, I not only pay attention to the research of teaching methods, but also pay attention to the research of learning methods, the special requirements of mathematics subject characteristics and the influence of information technology means on learning methods. I use teaching methods flexibly in teaching and gradually form a student-centered teaching model.
There are many teaching methods and strong skills in using information technology. This requires teachers to carefully study teaching materials, choose appropriate breakthrough points, choose the best time to use media, carefully design and pay attention to practical results according to teaching contents, key points and teaching objectives. For example, when teaching "correspondence", first, the computer displays two known important correspondence: the correspondence between real numbers and points on the number axis; Correspondence between points on the coordinate plane and ordered real numbers. This not only explains the meaning of the word "correspondence", but also does not make students feel suddenly, so that students can clearly discuss the relationship between the two groups of elements. Then, taking several different corresponding relationships as concrete examples, the corresponding relationship of elements between the two groups is vividly and concretely displayed by computer. Then guide students to analyze the similarities and differences of the corresponding relationships, sum up the characteristics of * * *, make students' thinking in images rise to abstract thinking, and deepen their understanding of concepts such as single-value correspondence and one-to-one correspondence. You can also list the application of "correspondence" in other disciplines, production practice and primary school mathematics with videos and slides.
From this lesson, we can see that because the computer can quickly display the corresponding relationship between two groups of elements, students can obtain rich perceptual materials from a large number of vivid and intuitive images, which creates conditions for students to form correct concepts, correct induction, analysis and reasoning. On the other hand, it saves time by omitting the teacher's drawing and erasing the blackboard, and gives more examples by using multimedia, which permeates the relationship between various disciplines and scientific and technological knowledge. In addition, because computers can constantly present new scenes, students are fresh and need to constantly solve new problems, so that their thinking is always in a positive state, especially flexible, and they can often think from different angles, which is helpful to cultivate students' creative thinking ability.