Sliding blackboard is an efficient teaching tool in classroom teaching, consisting of multiple movable boards that allow teachers to display or hide information as needed. This type of blackboard is usually installed on the walls of the classroom and can easily slide to reveal or cover different areas of content. During the teaching process, the sliding blackboard can be used to demonstrate the problem-solving process step by step, compare different concepts, or display relevant teaching materials in different course segments. It helps teachers organize classroom content and enables students to focus on the current topic of discussion. The versatility and flexibility of sliding blackboards make them an important auxiliary tool for promoting interactive learning and improving teaching efficiency in modern classrooms.