Movable blackboard for primary school mathematics teaching

Abstract

A movable blackboard for primary school mathematics teaching comprises a bottom support, a supporting board is arranged on the bottom support, first side boards are arranged on the left side and the right side of the top of the supporting board and are connected with elastic blocks, second side boards are arranged between the elastic blocks, a top board is connected to the first side boards, a groove is formed in the supporting board, and a first motor is arranged on the left side wall of the groove. A first screw is arranged at the right end of the first motor, a second screw is arranged at the right end of the first screw, first connecting pieces are connected to the outer sides of the first screw and the second screw, boxes are arranged at the front and rear ends of the first connectingpieces, elastic wiping blocks are arranged in the boxes, and a dust suction device is arranged on the supporting board. Closed space is defined by the two first side boards, the two second side boards, the supporting board and the top board jointly, and therefore the dust wiping process is conducted in the closed space, the situation that dust overflows and damages the body health of a user is avoided, writing can be conducted on the inner side faces and the outer side faces of the two rotating second side boards, the writing area is enlarged, and meanwhile the effect that questions or answers can be completely hidden in advance is achieved.

Description

technical field [0001] The invention belongs to the field of teaching blackboards, in particular to a movable blackboard for primary school mathematics teaching. Background technique [0002] Most of the current blackboards are inconvenient to move, and it is difficult to apply to different scenes, and the blackboard cannot be moved. When the teacher needs to write questions on the blackboard in advance and write the answer analysis on it, the students can intuitively see the questions and the analysis. It is possible to hide the answer analysis, which does not achieve the training effect of answering the questions. At present, the blackboard that can be rotated will hide the duty situation and schedule arrangement on the blackboard, which is not conducive to students' intuitive viewing. At the same time, they are wiping the blackboard There is generally a situation where dust is flying, which is not conducive to the health of teachers and students. Contents of the inventi...

AI Technical Summary

Problems solved by technology

[0002] Most of the current blackboards are inconvenient to move, and it is difficult to apply to different scenes, and the blackboard cannot be moved. When the teacher needs to write questions on the blackboard in advance and write the answer analysis on it, the students can intuitively see the questions and the analysis. It is possible to hide the answer analysis, which does not achieve the training effect of answering the questions. At present, the blackboard that can be rotated will hide the duty situation and schedule arrangement on the blackboard, which is not conducive to students' intuitive viewing. At the same time, they are wiping the blackboard Dust fluttering is common at times, which is not conducive to the health of teachers and students

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