a teaching board

Abstract

A teaching question board comprises a first teaching question board; a cavity penetrating through the left and the right is formed inside the first teaching question board; two sliding rails are correspondingly arranged at each of the top and the bottom of the inner cavity of the first teaching question board; a first board frame and a second board frame are movably connected onto the sliding rails; corresponding positions of the tops and the bottoms of the first board frame and the second board frame are connected with pressing blocks through springs; handles are arranged on opposite frame edges of the first board frame and the second board frame; a plurality of clamping holes are formed in corresponding positions of the tops and the bottoms of the sliding rails; a second teaching question board and a third teaching question board are respectively and fixedly connected with one side of the inner wall of the first board frame and one side of the inner wall of the second board frame; a cardan joint is connected with the bottom of the first teaching question board; a telescopic rod is connected with the bottom of the cardan joint; a movable rotating shaft is arranged at the top of the telescopic rod and is fixedly connected with the center of the bottom of the cardan joint; and a thread is arranged below the cardan joint. With the board, the teaching area can be increased according to the actual requirements, and the problem that the area of a question board is insufficient for senior high school students due to the relatively large question quantity is solved.

Description

technical field [0001] The application relates to a teaching question board, especially a teaching question board suitable for supplementary and high school teaching, which belongs to the technical field of teaching equipment. Background technique [0002] Teaching blackboard writing is also artistic. Teachers should design what kind of blackboard writing to help students to the greatest extent and achieve better teaching effects. The dialogue templates in the listening and speaking class need to be presented, and the knowledge points also need to be presented. The reading class can provide students with The words of the full-text clues need to be displayed on the teaching board, such as time, characters, verb phrases, etc., which need to be displayed selectively, so that after the preliminary study of the article, students can effectively understand the article according to the information on the teaching board. Of course, when necessary, important parts can be displayed wi...

AI Technical Summary

Problems solved by technology

[0003] There are various forms of teaching boards, but there are some corresponding problems. Traditional teaching uses the form of teachers writing on the blackboard to explain to students. Most of the teaching boards that have appeared are fixed boards, and the length of the teaching board cannot be adjusted. When the teacher uses the auxiliary board to teach, because the class is large, the students in the back row cannot observe the contents of the teaching board well. The utility model patent document with the Chinese patent application number CN204605301U uses a stainless steel universal wheel to make The entire teaching board can be moved flexibly, and the height of the support rod is adjusted by fixing bolts, which makes the whole teaching board more convenient to use. Although it plays an auxiliary teaching role, it is also troublesome during use. The area of ​​the frequently used teaching question board is not enough, and the structure is single and cannot be adjusted. Therefore, further improvement is needed. For this reason, we provide a teaching question board

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