Application of interactive electronic whiteboard in classroom teaching
Interactive whiteboard (hereinafter referred to as interactive whiteboard) integrates computer technology, microelectronics technology and electronic communication technology, and becomes an intelligent platform for human and computer interaction. The use of interactive electronic whiteboard in classroom teaching environment is conducive to teachers to play the role of guidance and aid, and students to give full play to the role of learning subjects. With its unique interactivity, interest and rich expression, appeal, it has opened up a broad world for the implementation of curriculum integration, created a good learning environment, improved students' learning and teachers' teaching, improved curriculum design, and perfected the teaching process, so as to effectively promote the development of students.
Interactive electronic whiteboard is a normal blackboard size, working under the support of computer hardware and software, not only has the blackboard, ordinary whiteboard and networking multimedia computer functions, but also realizes the computer functions, hardware and software functions and educational resources and human-computer and interpersonal interaction of electronic sensor board. It can create a vivid teaching environment, the teaching can not explain the unknown knowledge at a glance in front of the students, through color, form, sound, light, the teaching process directly and vividly affect the various perceptions of students. Colorful pictures and vivid sounds are conducive to creating a specific artistic conception, and its scenery, objects and people seem to be within reach. A large number of perceptual materials can make students feel immersive, fully mobilize students' enthusiasm for learning, arouse students' interest in learning content, and provide a good educational environment for cultivating students' innovative consciousness and exploration spirit.
1. Create learning situations to achieve independent learning
Interactive whiteboard with its unique interactivity, interest and rich expression, appeal, so that all kinds of teaching resources have been effectively integrated. In teaching, a large number of perceptual materials on the interactive whiteboard can enable students to perceive, understand problems, analyze and summarize, and draw conclusions, which can fully reflect the teacher-led and student-dominated teaching ideas, and promote the reform of teaching methods and teaching modes. In class, students are entertained by cartoons, nursery rhymes, animations, games... Deeply attracted, with great enthusiasm to participate in the learning process, into it. At the same time, teachers use interactive whiteboards to assist classroom teaching, use the resources needed for classroom teaching collected by students, promote the resonance between teaching and learning, greatly enrich students' learning style, improve the efficiency of classroom learning, and make students' learning initiative fully play.
2. Change evaluation methods to promote active development
The new curriculum standards require teachers to pay attention to the reform of students' learning evaluation, focusing on process evaluation. In class, teachers make use of the advantages of interactive whiteboards to make correct judgments on students' learning and practice, such as evaluating with students' favorite cartoon characters, evaluating with voices, evaluating with smiling faces, evaluating with unfolded flowers, evaluating with colorful fireworks... Some even use a wonderful cartoon as a reward for students' success in their studies. Friendly human-computer interaction allows students to understand their own situation in time and achieve the purpose of self-feedback. Teaching evaluation shows openness, and students really experience their own progress and the joy of acquiring knowledge in the encouragement and praise. All these make students have positive motivation, experience the fun of success, establish the confidence of learning, test and improve students' learning and teachers' teaching, improve the teaching process, so as to effectively promote the development of students.
3. Strengthen perceptual understanding and extend classroom space
Interactive whiteboard can effectively open the window of students' senses and the gate of thinking. It not only stimulates their interest in learning, but also deepens their perceptual understanding, prompting their understanding to transform from perceptual to rational, stimulating students' hearing and vision through sound, image and other information, stimulating students' thinking enthusiasm, and promoting students' rapid perception. For example, the Chinese class "Summer" reveals the effective method of integrating the interactive whiteboard with the curriculum: Using the interactive whiteboard to intuitively display the teaching method, first visually, the eyes are several beautiful scenes of summer, so that students can fully feel the breath of summer; Then the hearing, let the students listen to the unique sounds of summer, guide the students to make full use of the five senses to feel the beauty of summer; Then enter the discussion area, to explore and understand the true meaning of life together. In this way, students know how to discover and create beauty in a cooperative way, and capture the beauty of details in life with a sensitive mind. This will realize the transformation of teaching methods, teachers focus on guiding, guiding, channeling, counseling and persuading students, reflecting the main position of students' learning, to achieve equal interaction between teachers and students.
4. The teaching method is intuitive, breaking through the key points and difficulties
Through visualized pictures, it is helpful for students to master the key content and break through the difficult content. For example, after students have learned triangles, trapezoids and parallelograms, they can visually demonstrate the evolution of graphics through the interactive whiteboard: as shown in Figure 1, trapezoids ABCD, drag the screen, and when the edge of CD is gradually reduced to a point (that is, point C and point D coincide), the trapezoid becomes a triangle; As shown in Figure 2, trapezoid ABCD, drag the screen, when the CD side gradually expands until CD is equal to AB side length, then the trapezoid becomes a parallelogram.
In this way, the interactive whiteboard is simply operated, and the reversible whiteboard is used to replay the operation steps, so that students can more clearly understand the connection between the three kinds of graphics: trapezoidal area =(upper bottom + lower bottom)× height ÷2, triangle area =(0+ lower bottom)× height ÷2= bottom × height ÷2, parallelogram area =(upper bottom + lower bottom)× height ÷2= bottom × height ÷2.
Interactive whiteboard intuitive, image, vivid characteristics, in the classroom teaching has a unique advantage, to the traditional classroom teaching into new vitality and vitality. s