Using interactive whiteboard can create various situations for students, mobilize the participation of students' various senses, mobilize students' strong desire for learning, and stimulate their learning motivation and interest. Mathematical science is characterized by strong logic and high requirements for abstract thinking, especially when students are involved in space problems, dynamic process problems, complex calculation problems and so on. It can transform these complex problems into intuitive, vivid and vivid perceptual scenes, which greatly reduces the difficulty for students to understand and teachers to teach. Under the interactive whiteboard, the teaching information is three-dimensional, rich, vivid and interesting! There are not only transformations of numbers, but also some transformations of shapes. Using interactive electronic whiteboard, the geometric model is displayed, and the image is translated, flipped and expanded, so that complex mathematical problems are concrete, simplified and visualized. At the same time, it shows students the beauty of symmetry, harmony and curve in mathematics, so that students can appreciate the infinite scenery in mathematics learning and stimulate their interest in inquiry learning. For example, the straight line, ray and line segment of the seventh grade, in order to lead out the topic, collected cable-stayed bridges, rails, pools and valleys. You can draw, circle and write directly on the picture. Make a mark diagram of comet tail on the whiteboard, so that students can have an intuitive understanding of line segments, straight lines and rays in real life.
Secondly, interactive electronic whiteboard can cultivate students' inquiry ability in mathematics teaching.
The ultimate goal of learning mathematics is the application and innovation of mathematics. Whether it is the application of mathematics or the innovation of mathematics, it is inseparable from inquiry. Without inquiry, any subject (including mathematics) will lose its soul. Using interactive whiteboard, it is easy to make any triangle ABC and its three centerlines. Students drag the mouse to change the shape of the triangle. It can be observed that no matter how a triangle changes, its three center lines always intersect at one point. Because the teaching process changes at will, it is much more convenient than drawing on the blackboard and more flexible than the picture set by multimedia courseware. Therefore, when preparing lessons, teachers mainly consider not what to say and how to say it, but how to create a situation that meets the requirements of teaching content, how to guide students to do experiments, and how to organize students to cooperate in learning and communication.
The classified query of periodical articles is in the periodical database.
In this way, the teacher has changed from the master of the classroom and the imparting of knowledge to the organizer of teaching activities, the creator of learning situations, the director and helper of students' experimental process. In teaching, using interactive electronic whiteboard, paying attention to the cultivation of students' inquiry ability, the formation of knowledge in the process of problem inquiry, and the man-machine transformation of classroom roles, with students as the main body and teachers as the auxiliary, can improve classroom efficiency, improve students' overall mathematical literacy and cultivate students' inquiry ability.
Thirdly, interactive electronic whiteboard can cultivate students' innovative consciousness in mathematics teaching.
In mathematics teaching, the meaning of students' innovative ability is very broad, which includes the ability of students to ask questions, explore new laws, draw new conclusions and finally put forward new theories. Cultivating students' creativity is the purpose of innovative teaching. But in a sense, creative thinking ability is the most important mathematical ability. In teaching, teachers should pay attention to the cultivation of students' thinking ability, guide students to be good at finding problems, putting forward problems and solving problems by themselves, and cultivate students' innovative spirit. Mathematics is a science that studies the spatial forms of the real world and various quantitative relations in life. The ultimate goal of teaching a class is to let students use the content of this class to solve practical problems creatively. The application of interactive whiteboard can fully tap the teaching materials, enrich the appearance, arouse association, inspire thinking, simplify the complex, turn the difficult into the easy, inspire students to think in all directions and spread their imagination wings. With the help of interactive electronic whiteboard, students can get direct operation experience and inspire the development of thinking.
Fourthly, interactive electronic whiteboard in mathematics teaching can improve students' ability to solve problems.
Solving problems is a process of discovery and exploration, and it is also a process for students to feel problems, find strategies to solve problems, realize re-creation and experience mathematical value. Through questioning and resolving doubts, students can have innovative thinking, innovative personality and innovative ability. In mathematics teaching, rich interactive whiteboard teaching methods are conducive to the cultivation and improvement of students' creative problem-solving ability. In teaching, teachers should consciously connect what they want to learn with students' existing life experience, create virtual scenes, make abstract mathematics knowledge intuitive and vivid, and let students experience that mathematics knowledge is around and life is full of mathematics. Guide students to understand the essence of things through experience and master the laws of mathematics. For example, in the teaching of calculating the side area of a cylinder, three different cylinders are presented with interactive whiteboard courseware, so that students can guess: "What kind of graphics will the side of the cylinder look like when it is unfolded?" The students had a heated discussion, some said it was rectangular, some said it was square, and some said it was parallelogram. At this point, I am in no hurry to express my position. I first praised their spirit of thinking, speaking and arguing, and then asked, "What is the purpose of the picture? Then, through the courseware, the students demonstrate the development diagrams of three kinds of cylinders, and find that some are rectangular and some are square. Then ask the students to observe the relationship between the length and width of a rectangle and the bottom and height of a cylinder. Students find that the circumference of the bottom of the cylinder is equal to the length of the rectangle, which is higher than the width of the rectangle, and then ask students to deduce the formula for calculating the side area of the cylinder according to the area formula of the rectangle. In this way, students can observe and think independently and improve their ability to solve problems.
Interactive whiteboard has not only become an important part of modern social teaching, but also an important teaching tool. Interactive whiteboard is changing us and our understanding of traditional teaching. As a new modern educational technology, electronic whiteboard has entered the classroom, which has the advantages of both blackboard and multimedia courseware, and constitutes a truly modern teaching system. This new educational model has promoted profound changes in teachers' concepts and behaviors, and fundamentally changed the traditional teacher-student relationship and communication methods. Teachers are more like managers and instructors than preachers in teaching. Students have also changed from passive knowledge recipients to active explorers and personalized independent learners. When they study and study all kinds of knowledge and skills under the guidance and help of teachers, their learning ability, exploration ability, innovative consciousness and problem-solving ability have all been improved.
The function of electronic whiteboard is really powerful, but there are also some shortcomings, such as: the demonstration writing on whiteboard is far less than chalk and blackboard; The scene set by whiteboard is sometimes not as good as the natural scene; Whiteboard can't let many people perform at the same time. Although the "defect" of the whiteboard exists, it cannot be concealed. Of course, the reasonable application of electronic whiteboard makes it an auxiliary means of mathematics teaching, not all, which makes our teaching achieve the goal of getting twice the result with half the effort and adds luster to our mathematics teaching.