How to use multimedia to learn high school geography well

The application of multimedia technology in teaching has distinct characteristics such as the integration of information dissemination, the interaction of action mode, the creativity of teaching design, the intuition of teaching process and the enjoyment of teaching resources, and will play an increasingly important role in education and teaching. The implementation of the new curriculum standard in senior high school puts forward higher requirements for teachers' teaching ideas, teaching methods, teaching models and teaching processes. As a modern educational means, multimedia technology can help teachers solve this problem well. It changes the traditional teaching mode of blackboard and chalk, combines sound, text, drawing and painting, and deals with the key points and difficulties in geography teaching in a simple and intuitive way, thus optimizing classroom teaching. Therefore, under the situation of new curriculum reform, the application of multimedia technology in geography teaching has very important practical significance. So, how to use multimedia reasonably in geography classroom teaching in senior high school?

First, create a situation. Stimulate interest in learning

If teachers want to have a good class, they must create an optimized teaching situation. Multimedia has unique advantages in creating situations and atmosphere suitable for classroom content. For geography teaching, whether geography teachers can actively create situations and stimulate students' interest in learning is the key to the successful introduction of new courses. The role of teachers is mainly how to create appropriate situations in order to introduce the content of new courses. Appropriate guidance can stimulate students' interest, enliven the classroom atmosphere and make students' learning activities more extensive and in-depth.

For example, when learning the content of "Common Weather System", the guide plays the local weather conditions at this time of the year through multimedia, and analyzes the causes of these weather through personal experience. Taking weather phenomena in life as teaching materials through multimedia greatly stimulates students' interest in discussion and desire for knowledge, which is convenient for students to master the weather conditions brought by these common weather systems and establish a scientific and correct view of the environment. Geographical phenomena in life create situations through multimedia, which narrows the distance between students and geographical science, enables students to enhance their emotional experience while studying, and smoothly realize the transfer, understanding and application of knowledge. The application of multimedia reveals the mystery behind natural phenomena for students.

Second, break through difficulties and improve teaching efficiency

There are many emphases and difficulties in geography class in senior high school. It is difficult for students to understand only by the teacher's explanation. Multimedia geography teaching is vivid, intuitive and effective. It can visualize and concretize abstract knowledge, which is convenient for students to master. Enhancing the sense of vitality is conducive to the acquisition of knowledge, so as to highlight key points, dilute difficulties, get twice the result with half the effort and improve the quality of classroom teaching.

For example, in the part of global atmospheric circulation, to thoroughly understand the formation of three-circle circulation in the northern and southern hemispheres, we should not only understand that solar radiation is the energy source of atmospheric movement, but also understand the direct cause of atmospheric movement of Bow I, and also understand the influence of bias and friction on it, which is both the focus and the difficulty of this lesson. Using courseware, the simulated whole earth is displayed to students through the display screen, so that students can intuitively see the atmospheric circulation in the low latitude, middle latitude and high latitude of the northern and southern hemispheres respectively. Students can clearly see where the air rises and falls, and the high pressure and low pressure can be seen at a glance; The horizontal pressure gradient force from high pressure to low pressure is also particularly distinct: because the earth keeps rotating, the wind belt formed by geostrophic deflection force and friction force in high altitude is intuitively displayed in front of students, which not only consolidates the key content of this lesson, breaks through the difficulties, but also receives good teaching results.

Third, skillfully use multimedia to cultivate thinking ability

In the new curriculum reform, an important idea is that the classroom should take students as the main body and teachers as the main body. Effectively cultivating students' thinking ability is a very important embodiment of this concept. In teaching practice, students encounter difficulties, and if they don't get timely and effective help, their thinking will be blocked for a long time. In high school, students are under great academic pressure and distracted, and it is easy to forget what they have learned. Clever use of multimedia can concentrate students' attention, enrich various knowledge representations of geography, fully tap teaching materials, promote the all-round development of students' thinking and break through thinking obstacles. In addition, the clever application of multimedia can create a more harmonious atmosphere, and at the same time encourage students to use their brains, mobilize their thinking and stimulate their imagination.

For example, when introducing and reviewing China's regional geography "The Causes of the Above-ground River in the Lower Yellow River in China", we can first play a video of soil erosion in the middle reaches of the Yellow River, and then demonstrate the formation process of the above-ground river with animation, so that students can easily understand that it is formed by river sediment deposition. It turns out that the middle reaches of the Yellow River flow through the fragmented and loose Loess Plateau with numerous tributaries. Due to the destruction of vegetation on the Loess Plateau, a large amount of sediment and rainwater flowed into the Yellow River during the rainstorm, making the Yellow River the largest river with sediment concentration in the world. Out of the Loess Plateau, the Yellow River flows into the downstream plain area. As the river widens, the slope slows down and the flow rate slows down, a large amount of sediment is deposited at the bottom of the river, which gradually raises the river bed and becomes an "overground river". This stimulates students' thirst for knowledge through intuitive images and movies. Finally, let students draw the formation process of the Yellow River on the ground with mind map, which not only cultivates students' thinking ability and problem-solving ability, but also further strengthens the teaching effect.

Fourth, the use of multimedia. Improve the ability to read maps

In geography teaching, the cultivation of students' ability to read pictures is a basic skill. It can not only help students to understand and remember geographical knowledge, but also help students to establish thinking in images and improve their ability to solve problems. Teach students to analyze, synthesize, generalize, judge and reason by looking at pictures, and cultivate students' ability. Applying multimedia to geography teaching can help students form correct and comprehensive important skills of reading, using and even drawing maps.

For example, when talking about "the prevalence of westerlies and the formation of temperate maritime climate", firstly, the map of the distribution range of temperate maritime climate in western Europe is displayed by multimedia, and the latitude and longitude range is displayed on the map. Click next to it to display the map of pressure zone and wind zone formed by three-circle circulation. In order to enhance students' intuition, we can show the landscape map of temperate maritime climate, and let students compare and analyze the causes of temperate maritime climate according to these material maps. In this way, in the process of mastering knowledge, students not only review the old knowledge of pressure belt and wind belt, but also cultivate the ability of analysis and reasoning In order to further cultivate students' logical thinking ability, we can show the map of temperate maritime climate distribution in Europe and North America, so that students can compare and comprehensively analyze the characteristics, similarities and differences of temperate maritime climate distribution in North America and Europe. Then design some related questions, let students do the questions on the computer, and check whether the students have mastered this part in time. In this way, we can not only explain and analyze according to the chart, but also ask questions and train according to the chart, especially the students' ability to understand the chart and logical thinking.

In short, senior high school geography teachers should choose the most suitable teaching media through careful teaching design to improve teaching efficiency. In teaching, we should give full play to the leading role of teachers and flexibly use modern information technologies such as multimedia, thus greatly improving the efficiency of geography classroom teaching in senior high schools.