A tool for drawing in mathematics teaching

Abstract

The invention relates to a drawing tool for mathematical teaching. The problem that formulas cannot correspond to drawings in position relation in a one-to-one mode in the mathematical teaching process can be effectively solved. A transparent plate is fixedly connected to the front portion of a fixing plate, a spacing is reserved between the transparent plate and the fixing plate, multiple sliding groove groups are arranged on the front side face of the fixing plate, a coordinate plate fixing rack is placed in the spacing and comprises a vertically placed base plate, multiple rollers corresponding to sliding grooves are installed on the right side face of the base plate, the rollers are arranged in the sliding groove groups to form a structure that the base plate slides in the sliding groove groups through the rollers in a left-right mode, multiple penetrating base plates and first cross rods capable of sliding in a left-right mode are installed on the base plate, coordinate plates are installed at the ends of the first cross rods, and coordinate axes exist on the coordinate plates. The first cross rods are sleeved with first springs, rotary shafts are installed on the coordinate plates, ejection rods arranged between the coordinate plates and the base plates and vertically rotating through the rotary shafts are installed on the rotary shafts, baffles are installed on the base plates, and the placement positions of coordinate blocks are not limited and can very well correspond to the formulas in a one-to-one mode.

Description

technical field [0001] The invention belongs to teaching instruments, in particular to a drawing tool for mathematics teaching. Background technique [0002] In the teaching process of deriving mathematical formulas in college mathematics, in order to allow students to more intuitively understand the meaning expressed by the formulas, it is necessary to draw curves corresponding to the mathematical formulas. However, in the current teaching process, when drawing, generally The teacher draws freehand on the blackboard. Because it is troublesome to draw the coordinate system on the blackboard, the coordinate system is generally not drawn when drawing, resulting in irregular drawings, which cannot express what they want well. The meaning of representation; in order to solve the above problems, some patent documents now propose solutions to the above problems, one of which is to place a coordinate board on one side of the blackboard and draw on the coordinate board, but due to t...

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 purpose of the present invention is to provide a drawing tool in mathematics teaching, which can effectively solve the problem that the positional relationship between formulas and figures cannot be one-to-one in the mathematics teaching process.

Images