Teaching aid for displaying polynomial function and display method thereof

A technology of polynomial functions and teaching aids, which is applied in the direction of educational appliances, teaching models, instruments, etc., can solve the problems of smooth curves, rough positions, and insufficient smoothness, etc., and achieve the effect of smooth display effect and strong adaptability

Inactive Publication Date: 2021-08-03
临沂职业学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, the following three points, one is the accuracy of the function, that is, whether the exact form of the function is actually displayed, the existing technology is often only satisfied with showing a rough idea, and the accuracy is lacking, and the other is the proportion required in the display of the function Properly adjust, for example, for the function of y=f(x), if the value of x is between -5 and 5, but the value of y is only between -0.05 and 0.05, then if the value of the number axis is similar, the polynomial curve will only form a similar paste in A line on the horizontal axis, unlike a changing function curve, lacks the proportional change of the horizontal and vertical axes, so that the curve does not look like a curve; the third is the lack of smoothness display. In the display of the function curve, smoothness is Very important attribute, the curve is not smooth enough, so that people can't see the actual appearance of the function, and the display effect is also greatly reduced
[0003] We have analyzed the prior art. In the prior art, CN109817065A discloses a graphic teaching aid for advanced mathematics functions. Its function curve must pass through the installation ring, so that it can only demonstrate part of the specific function, and the function form uses a demonstration wire However, as we all know, the flexibility of the demonstration iron wire is insufficient, and it is basically impossible to use it to demonstrate the smoothness of the function, and if the shape corresponding to one function has been folded, then adjust it to another function The curve cannot be done accurately, which is determined by the properties of the iron wire itself
CN109920278A discloses a teaching demonstrator for advanced mathematics functions. This kind of display has a wide range, but the position of its specific value is displayed by LED lamp beads. The position is too rough, and the smoothness is even more difficult to curve. composed of discrete points
Among CN211264608U, when carrying out sine and cosine image drawing, teacher can be by changing the shape of image soft bar 13, and fix with the second fixed column 14, but the image soft bar here is too soft, and fixing with fixed column also can cause The bend is very rough, and it cannot effectively display the smooth curve at all

Method used

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  • Teaching aid for displaying polynomial function and display method thereof
  • Teaching aid for displaying polynomial function and display method thereof
  • Teaching aid for displaying polynomial function and display method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] see Figure 1-7 , a polynomial function display teaching aid provided by the present invention is characterized in that it includes a fixing part 1 , a lifting part 2 and a demonstration part 3 .

[0027] Described fixing part comprises left fixing part 11 and right fixing part 12, and left fixing part comprises left concave part 111 and left bolt 112, and right fixing part 12 comprises right concave part 121 and right bolt 122; Left concave part and right concave part all It is in the shape of "concave", and is fastened on the outside of the left end and the right end of the buckle 21 respectively. Any one of the left bolt and the right bolt has a bottom and a screw head, and the bottom and the screw head are connected by a threaded stud. The stud of the bolt rotates with the upper through hole of the left concave profile, and the stud of the right bolt rotates with the upper through hole of the right concave profile. The upper and lower edges of the buckle are adapte...

Embodiment 2

[0034] A display method for polynomial functions, which uses the teaching aid for displaying polynomial functions as described in Embodiment 1, characterized in that .

[0035] (1) Teaching aid assembly steps: fix the demonstration part on the outside of the left body part and the right body part in advance, buckle the buckle part connected with the left body part and the right body part on the protruding upper edge of the blackboard, connect the left fixed part and the right body part The right fixing part is stuck on the outside of the left and right ends of the buckle, tighten the left and right bolts, press the left and right body parts until all the suction cups are sucked tightly to the surface of the blackboard. The demonstration part here has been pre-installed, of course the accessories such as intersection pieces, polyester pieces, and magnetic suction pieces.

[0036] (2) Function selection and calculation steps: when f(x)=A is satisfied n *x^n+A n-1 *x...(n-1)+.....

Embodiment 3

[0041] A display method for polynomial functions, which uses the teaching aid for displaying polynomial functions as described in Embodiment 1, characterized in that .

[0042] (1) Teaching aid assembly steps: fix the demonstration part on the outside of the left body part and the right body part in advance, buckle the buckle part connected with the left body part and the right body part on the protruding upper edge of the blackboard, connect the left fixed part and the right body part The right fixing part is stuck on the outside of the left and right ends of the buckle, tighten the left and right bolts, press the left and right body parts until all the suction cups are sucked tightly to the surface of the blackboard. The demonstration part here has been pre-installed, of course, the attachments such as intersection pieces, polyester pieces, and magnetic suction pieces are not included.

[0043] (2) Function selection and calculation steps: in the polynomial function satisfyi...

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Abstract

The invention discloses a teaching aid for displaying a polynomial function. The teaching aid comprises a fixing part (1), a hoisting piece (2) and a demonstration part (3), wherein the fixing part comprises a left fixing part (11) and a right fixing part (12); the hoisting piece comprises a buckling part (21), a body part (22) and a sucking disc (23); and the demonstration part comprises an upper rod (31), a lower rod (32), a longitudinal rod (33), a longitudinal rod hole (34), an intersection piece (35), an intersection needle (351), an intersection fork (352), a polyester piece (36), a white board part (37) and a magnetic piece (38). The invention discloses a polynomial function display method, which is carried out by utilizing a teaching aid and comprises a teaching aid assembly step, a polynomial function selection and calculation step, a coincidence calculation step and a display step.

Description

technical field [0001] The invention relates to the technical field of mathematical teaching aids for display, in particular to a teaching aid for displaying polynomial functions and a display method thereof. Background technique [0002] Analytical geometry is a compulsory course in high school, and spatial analytic geometry is also an important chapter in college mathematics. It is very necessary and necessary to show the specific state of polynomial functions in class. It serves to cultivate students' basic quality and study follow-up courses. Essential learning content for students. However, there is a lack of teaching aids for the effective display of polynomial functions in the prior art. The prior art is often satisfied with the display itself, and the actual effect of the display is relatively poor, because polynomial functions have various forms and are generally composed of smooth curves. Display, stay on the display, some display, but do not pay attention to the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/02
CPCG09B23/02
Inventor 凌思兰
Owner 临沂职业学院
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