Teaching tools basically fall into the following three categories. What teachers like to use most is probably PPT.

① General teaching aids: including conventional and professional teaching aids used in basic education in primary and secondary schools and various professional education in universities and technical secondary schools. Generally, there are real objects, which present objective things directly in front of students so that students can directly feel them; simulated real objects, including specimens, models and other replicas, such as globes, human models, engineering equipment models, etc.; charts depicting the image of things, including pictures, Various visual charts such as photos, maps, statistics, and designs; modern equipment that reproduces the image of things and their processes, such as movie machines, televisions, tape recorders, video recorders, slide projectors, projectors, etc. There are also conventional teaching aids used in teaching, such as blackboards, erasers, whiteboards, chalk, etc.

②Special teaching aids: Generally refer to special equipment used for teaching special education objects such as blind, deaf, mute and other disabled people and mentally retarded children. Common special teaching tools include blind boards, blind pens, hearing aids, visual aids, etc.

③Children’s teaching aids: toys and intellectual development supplies used for preschool children’s enlightenment education. It can develop children's motor ability, train their perception, stimulate their imagination and arouse their curiosity. Early childhood teaching aids provide material conditions for children's physical and mental development, including intuitive pictures, images, technology, assembly and assembly toys, architectural and structural models, music and sound-making toys, etc.