CN210722033U

CN210722033U - Teaching aid display device for mathematics education

Info

Publication number: CN210722033U
Application number: CN201921301625.6U
Authority: CN
Inventors: 洪敏�
Original assignee: Shenyang Institute of Technology
Current assignee: Shenyang Institute of Technology
Priority date: 2019-08-12
Filing date: 2019-08-12
Publication date: 2020-06-09
Anticipated expiration: 2029-08-12

Abstract

The utility model relates to a teaching aid display device especially is a teaching aid display device for mathematical education, including bottom plate and carousel, the central point of bottom plate puts and installs the connecting piece, and the connecting piece includes the fixed disk at upper and lower both ends, installs the connecting axle between two fixed disks, and the diameter of connecting axle is less than the diameter of fixed disk, connecting axle and fixed disk between form the draw-in groove, and the top of bottom plate is provided with the instruction arrow point, and the top surface of carousel is provided with two cut-off lines at least, and a plurality of probability districts are cut apart into with the carousel to the cut-off line, and the central point of carousel puts and has seted up. Through the cut-off line that sets up, can cut apart the carousel region, the quantity of cut-off line can be adjusted wantonly simultaneously, is convenient for adjust the size in probability district, can carry out the adjustment of different probability showsings, wholly rotates on the bottom plate through the carousel, through the cooperation instruction arrow point, can simulate random carousel and rotate down, instruct the probability showsof the directional different probability districts of arrow point.

Description

Teaching aid display device for mathematics education

Technical Field

The utility model relates to a teaching aid display device specifically is a teaching aid display device for mathematical education.

Background

In mathematical education, probability is an important chapter, and because probability is relatively abstract, the probability principle is difficult to understand thoroughly only through theoretical knowledge, at present, there is not the teaching aid to the demonstration of mathematical probability in the market, leads to the student to be difficult to understand. In view of this, we propose a teaching aid display device for mathematical education.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an aim at is through providing a teaching aid display device for mathematics education to solve the teaching aid to the show of mathematics probability on the market that provides in the above-mentioned background, lead to the student to be difficult to understand the defect.

The utility model adopts the technical scheme as follows: including bottom plate and carousel, the central point of bottom plate puts and installs the connecting piece, the connecting piece includes the fixed disk at upper and lower both ends, two install the connecting axle between the fixed disk, the diameter of connecting axle is less than the diameter of fixed disk, the connecting axle and form the draw-in groove between the fixed disk, the top of bottom plate is provided with the instruction arrow point, the top surface of carousel is provided with two parting lines at least, the parting line is cut apart into a plurality of probability districts with the carousel, the central point of carousel puts and has seted up the rotary groove.

As an optimal technical solution of the utility model: the size of the rotary groove is matched with that of the clamping groove.

As an optimal technical solution of the utility model: the inner diameter of the rotary groove is equal to the outer diameter of the connecting shaft.

As an optimal technical solution of the utility model: the top of the bottom plate is also provided with a handle.

The utility model has the advantages that: through the cut-off line that sets up, can cut apart the carousel region, the quantity of cut-off line can be adjusted wantonly simultaneously, is convenient for adjust the size in probability district, can carry out the adjustment of different probability showsings, wholly rotates on the bottom plate through the carousel, through the cooperation instruction arrow point, can simulate random carousel and rotate down, instruct the probability showsof the directional different probability districts of arrow point.

Drawings

Fig. 1 is a schematic overall structure diagram of the preferred embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a bottom plate according to a preferred embodiment of the present invention;

FIG. 3 is a schematic view of a connecting member according to a preferred embodiment of the present invention;

fig. 4 is a schematic view of a turntable structure according to a preferred embodiment of the present invention.

The reference numbers illustrate:

1. a base plate; 11. a connecting member; 111. fixing the round block; 112. a connecting shaft; 113. a card slot; 12. an arrow is indicated; 13. a handle; 2. a turntable; 21. dividing the lines; 22. a probability region; 23. and (6) rotating the groove.

Detailed Description

It should be noted that, in the present application, features of embodiments and embodiments can be combined with each other without conflict, and the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the utility model provides a teaching aid display device for mathematical education, bottom plate 1 and carousel 2, the central point of bottom plate 1 puts and installs connecting piece 11, connecting piece 11 includes the fixed circle 111 at upper and lower both ends, install connecting axle 112 between two fixed circle 111, the diameter of connecting axle 112 is less than the diameter of fixed circle 111, connecting axle 112 and fixed circle 111 between form draw-in groove 113, the top of bottom plate 1 is provided with instruction arrow 12, the top surface of carousel 2 is provided with two parting lines 21 at least, parting line 21 is cut apart into a plurality of probability district 22 with carousel 2, parting line 21 is the double faced adhesive tape, tear the oil paper of one side wherein with the double faced adhesive tape, and paste and cover in carousel 2 department, be convenient for cut apart 2 regions of carousel, the number of parting line 21 is 2's multiple, for example: 2. 4, 6, 8, etc., and parting line 21 is distributed on the surface of turntable 2 in a ring shape, which is convenient for parting line 21 to bisect the local area of turntable 2, so that the areas of each probability region 22 formed by parting are equal, and meanwhile, colored paper sheets with different colors are pasted on probability regions 22, so as to display different probability regions.

Furthermore, a rotating groove 23 is formed in the center of the rotating disc 2, the size of the rotating groove 23 is matched with the size of the clamping groove 113, and the rotating groove 23 of the rotating disc 2 is clamped into the clamping groove 113 to complete installation of the rotating disc 2 and the bottom plate 1.

The inner diameter of the rotary groove 23 is equal to the outer diameter of the connecting shaft 112, the rotary groove 23 rotates in the connecting shaft 112, so that the rotary disc 2 integrally rotates on the base plate 1, and the probability that the indication arrow 12 points to different probability areas 22 under the rotation of the random rotary disc 2 can be simulated by matching the indication arrow 12.

In addition, the top of the bottom plate 1 is also provided with a handle 13, the handle 13 is in an inverted U shape, and the handle 13 is convenient for carrying the whole device.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a teaching aid display device for mathematical education, includes bottom plate (1) and carousel (2), its characterized in that: the connecting piece (11) is installed at the central position of bottom plate (1), connecting piece (11) are including fixed circle piece (111) at upper and lower both ends, two install connecting axle (112) between fixed circle piece (111), the diameter of connecting axle (112) is less than the diameter of fixed circle piece (111), connecting axle (112) and fixed circle piece (111) between form draw-in groove (113), the top of bottom plate (1) is provided with instruction arrow (12), the top surface of carousel (2) is provided with two parting lines (21) at least, parting line (21) are cut apart into a plurality of probability district (22) carousel (2), rotary groove (23) have been seted up at the central position of carousel (2).

2. A teaching aid display device for mathematical education as claimed in claim 1, wherein: the size of the rotary groove (23) is matched with that of the clamping groove (113).

3. A teaching aid display device for mathematical education as claimed in claim 2, wherein: the inner diameter of the rotary groove (23) is equal to the outer diameter of the connecting shaft (112).

4. A teaching aid display device for mathematical education as claimed in claim 1, wherein: the top of the bottom plate (1) is also provided with a handle (13).