.wall calendar whiteboard.Second, the use of interactive LCD technology can instantly and flexibly introduce multiple types of digital information resources, and flexible editing, organization, display and control of multimedia materials, which makes the presentation of digital resources more flexible and also solves In the past multimedia projection system environment, the use of courseware and slides teaching materials structure is highly solidified. The interactive LCD integrated device enables flexible integration of a wide range of educational resources. You can call the computer and network resources (including various computer and network software courseware, play various multimedia CDs, video and audio materials, etc.) on the computer interface of the interactive LCD, and you can directly call the interactive The LCD library has a variety of resource libraries, including a flipchart resource library, an annotation library, a hyperlink library, and an animation library.