A drawing board for mathematical drawing

Abstract

The invention relates to a drawing board for mathematical drawing. The drawing board can effectively solve the problem that in the mathematical teaching process, the formula and the figure cannot be in one-to-one correspondence in position relation. A transparent board is fixed to the front portion of a fixing board, sliding grooves are formed in the front side face of the fixing board, a coordinate board fixing frame is arranged in a gap between the transparent board and the fixing board, and comprises a vertically-placed base plate, multiple rollers are arranged on the right side face of the base plate and are arranged in the sliding grooves, multiple first transverse rods which can penetrate the base plate and can slide left and right are arranged on the base plate, a coordinate board is arranged at the ends of the first transverse rods, and is provided with a coordinate shaft, and the first transverse rods are sleeved with first springs; a support is arranged on the side face of the base plate and is provided with a sleeve, a sliding rod is arranged in the sleeve, an inner extrusion plate is arranged at the end of the sliding rod, the sleeve is sleeved with a second spring, a top rod is arranged on the other side face of the inner extrusion plate, an outer extrusion board is arranged on the top rod, and is attached to the coordinate board, a pre-extrusion board is arranged between the inner extrusion board and the base plate, the containing position of a coordinate block is not limited, and the coordinate block can in one-to-one correspondence to the formula.

Description

technical field [0001] The invention belongs to teaching equipment, in particular to a drawing board for mathematical drawing. Background technique [0002] In the teaching process of deriving mathematical formulas in college mathematics, it is necessary to draw curves corresponding to the mathematical formulas. Drawings can more intuitively show the meaning expressed by the formulas. However, in the current teaching process, when drawing, it is generally the teacher Freehand drawing on the blackboard, because it is troublesome to draw the coordinate system on the blackboard, so when drawing, generally do not draw the coordinate system, resulting in irregular drawings and unclear expressions; in order to solve the above problems, there are now patent documents A solution to the above problems is proposed, one of which is to place a coordinate board on one side of the blackboard and draw on the coordinate board. However, due to the many mathematical formulas in the university...

AI Technical Summary

Problems solved by technology

[0003] In view of the above situation, in order to overcome the defects of the prior art, the object of the present invention is to provide a drawing board for mathematical drawing, which can effectively solve the problem that the positional relationship between formulas and figures cannot be one-to-one in the mathematics teaching process.

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