The interactive whiteboard combines blackboards, chalk, multimedia computers and projections. In addition to basic functions such as writing, editing, painting, and gallery, there are many special functions, such as magnifying glasses, spotlights, screens, and so on.
(1) The mathematical tools included in the interactive whiteboard are complete.
In the mathematics discipline, the interactive whiteboard has its own teaching tools, and the commonly used mathematical tools are compasses, rulers, and protractors. In addition, the smart pen in the whiteboard can intelligently identify the mathematical graphics drawn by the teacher, such as: drawing circles, squares, rectangles, triangles, and the like. It provides convenience for teachers in teaching, saves teachers' drawing time, and effectively improves classroom teaching efficiency.
(2) Interactive whiteboard plays a quick role in graphic teaching
The interactive whiteboard has a geometric drawing board. The teacher can insert any two-dimensional graphics and three-dimensional graphics and axes that we have studied, which greatly enhances the intuitiveness and authenticity of mathematics classroom teaching, and also facilitates mathematics classroom teaching. save time and energy.
For example, in the course of teaching "Measurement of the Angle", in the traditional teaching, the teacher is full of words, and the students are still confused. As for the composition of the protractor, it takes a lot of time to get to know. Now using electronic whiteboards for teaching is simple and straightforward. When teaching how to measure, I pulled out different triangles, quadrilaterals and other figures from the gallery, pointing out the angles to be measured. I used the operating tool protractor in the electronic whiteboard to demonstrate, and the students can clearly see the protracted process of the demonstration. In particular, how to measure the angular effects of different orientations is more obvious. The process of operating the rotation on the electronic whiteboard saves time and the effect is outstanding. The students deepened their understanding of the concept in the operation, and effectively concentrated the attention of the whole class and enhanced the students' interest in learning. This combination of visual and static demonstrations was time-saving and clear, and the teaching effectiveness reached a very high level. Effective.
Another example: In the teaching of "The Inner Angle of the Triangle", the traditional classroom treatment is generally: the teacher and the student jointly study the obtuse triangle, the acute triangle, and the right triangle with the methods of cutting, spelling, quantity, calculation, folding, etc. . In the actual operation of the students, they really feel that the inner angles of the three triangles in their hands are 180 degrees, but the understanding that "the angle of the arbitrary triangles must be 180 degrees" is not profound, and even students doubt. After the interactive whiteboard is in place, in the classroom, the teacher can provide a triangle that can be arbitrarily deformed and the number of angles is constantly changing, so that the students can drag and drop different types of triangles on the interactive whiteboard, with drag and drop. The number of angles in the triangle changes continuously. Students observe, calculate, communicate, and experience during the dragging process, and conclude that the inner angles of arbitrary triangles are 180 degrees.
The auxiliary mathematics teaching of interactive whiteboard provides an excellent education and teaching platform for teachers and students, so that rich media resources can fully exert their due effectiveness in classroom teaching, and make classroom teaching more vivid and exciting. In my education and teaching, because it is a new thing, I am not very familiar with it. Many functions have not yet been mastered. I can only express my experience in trial use, and learn and apply in the future education and teaching. Let it play its biggest role.
In summary, the rational application of multimedia technology in teaching, to improve students' interest in learning, to encourage students to actively participate in the whole process of learning, to cultivate mathematics ability, to develop intelligence and highlight the weights and difficulties of teaching materials, and to improve the efficiency of classroom teaching. Both have positive effects. The use of multimedia-assisted instruction can not only motivate students' enthusiasm for learning, but also develop intellectual factors such as mathematics knowledge, ability and thinking.
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