English teaching device

Abstract

The invention discloses an English teaching device. The English teaching device comprises a plurality of magnet strips arranged in a blackboard and sliding rails arranged at left and right ends of the blackboard, wherein a sliding plate provided with rollers is arranged in the sliding rails; a scraper plate is arranged on the upper side of the sliding plate; a bottom plate is arranged on the lower side of the sliding plate; soft bristles are arranged at one end, in contact with the blackboard, of the bottom plate; baffles are arranged at two ends of the sliding plate; the baffles, the bottom plate and the scraper plate are in contact with the blackboard to form an iron particle accommodating cavity; a plurality of iron particles with the peripheries coated with a white coating are arranged in the iron particle accommodating cavity; a driving mechanism used for driving the sliding plate to move up and down is arranged at the upper part of the blackboard; a blackboard wiping mechanism is arranged on the sliding plate and connected with a vibratory dust collection mechanism; and a rod body of an electric telescopic rod is provided with a guide sleeve. A teacher can perform line drawing in a long distance to draw a four-line-grid specification, the blackboard can be wiped while the line drawing is carried out, and dust can be collected, so that the teacher and students can be prevented from absorbing the dust; and the device runs stably and does not damage the blackboard.

Description

technical field [0001] The invention relates to the technical field of English teaching tools, in particular to an English teaching device. Background technique [0002] At present, the traditional English blackboard teaching is still dominant. In basic writing training and writing teaching, English standard blackboard writing is widely used. In order to write standardly, teachers need to draw the corresponding English four-line grid on the blackboard. When drawing the grid, use a long ruler to draw four lines line by line There are also teaching equipment such as a four-line grid device, an English three-line marking device, a parallel line marking aid, a blackboard with a ruler, and a blackboard for English and music teaching, although the purpose of drawing a grid can be achieved. , but it is a waste of time to carry utensils and draw grids with them at all times. [0003] The English teaching four-grid drawing tool in the prior art, such as a teaching blackboard disclo...

AI Technical Summary

Problems solved by technology

Its shortcoming is: this kind of blackboard eraser needs people to hold the slider to slide, people are more laborious in the pulling process, and the degree of automation is not high. The volume is large, the operation is time-consuming and laborious, and the drawn lines are inconsistent and unclear; more importantly, the drawn lines are not straight due to uneven force during the drawing process, which makes it difficult to control the strength and balance , not beautiful, greatly affecting the quality of teaching

But it still has the following problems: 1. The handwriting on the blackboard cloth is cleaned by lotion, and the blackboard cloth needs to be completely immersed in the lotion. After cleaning, the blackboard cloth is soaked, and it takes a while to wait for the blackboard cloth to dry before continuing to write , not suitable for classrooms with frequent writing; 2. The lotion cannot completely erase the handwriting on the blackboard cloth, which will cause inconvenience to the next writing; 3. The blackboard cloth is suspended, and the blackboard cloth is pressed inward when writing. , it is inconvenient to write

The impact of chalk on students' myopia For a long time, our teaching equipment has continued to use blackboards, metal green boards and chalk. The contrast is too strong, which can easily cause visual fatigue, which will cause the incidence of large areas of myopia among students

Images