With the popularization of computer and network, many new means are provided for geography teaching, which makes geography class more than pictures and languages. Students can feel and experience the content of geography class more intuitively through modern teaching means. At present, many multimedia teaching methods are used in geography class, such as slides and videos, so that students can directly simulate some natural phenomena, thus deepening their memory and cognition of the class content. For example, it is difficult to explain the phenomenon of "volcanic eruption" clearly only by teachers' teaching language and body language, and it is also difficult for students to understand it. If teachers download videos related to volcanic eruption through network resources, the contents are as follows: In addition, for example, the United States introduced GIS (Geographic Information System) into the campus in the 1980s. It has the functions of acquiring, processing, managing, analyzing and visualizing geospatial data, and has been widely concerned in recent years. As a special auxiliary teaching technology of geography course, it can expand the functions of traditional media and computer multimedia, give full play to the characteristics of geographical space, comprehensiveness and knowledge rationality, and bring fundamental changes and revolutionary development to traditional geographical science research methods. Some scholars have pointed out that gis is an important symbol of the transition from traditional geography to modern geography [5].

Geography course has a wide range of contents. At present, our main teaching mode is to have classes in the classroom.

Teaching is a narrow classroom teaching. For geography, we can choose certain scenes for teaching according to different teaching contents, organize students to go out of the classroom, experience geography personally and deepen their understanding of geography. For example, we can choose some national geological parks to teach topography and geology, and use local science and technology museums around the school, such as planetarium, science and technology museum and museum.

5 Harmonious relationship with students

For high school students, the enthusiasm for learning has a great relationship with the attitude towards teachers, and the style and charm of teachers can have a great influence on students' learning. Therefore, for high school teachers, to teach a course well, we must first be a good teacher. Harmonious teacher-student relationship is the basis for students to learn a course well. Therefore, as a geography teacher, it is necessary to understand students' psychology. Usually they are parents and friends of students. In the classroom, humorous teaching language and active classroom atmosphere can narrow the distance between teachers and students.