CN203366601U

CN203366601U - Spatial geometry demonstration teaching aid for mathematic teaching

Info

Publication number: CN203366601U
Application number: CN 201320473944
Authority: CN
Inventors: 翟丽丽; 章树玲; 罗宁; 刘兴薇; 董艳; 侯玉双
Original assignee: Inner Mongolia University of Science and Technology
Current assignee: Inner Mongolia University of Science and Technology
Priority date: 2013-08-05
Filing date: 2013-08-05
Publication date: 2013-12-25
Anticipated expiration: 2023-08-05

Abstract

The utility model relates to a spatial geometry demonstration teaching aid for mathematic teaching, belonging to a teaching auxiliary tool and solving the problems of complex structure and inconvenient use of a spatial geometry demonstration teaching aid in the prior art. The demonstration teaching aid includes a demonstration frame which is composed of a panel and four columns, the upper ends of the four columns are vertically and fixedly connected with the parts close to the four corners of the lower side of the panel respectively, the upper surface and the lower surface of the panel are provided with nine magnets respectively, the magnets on the upper surface and on the lower surface are correspondingly arranged and are attracted and connected depending on the magnetic force, each magnet on the lower surface of the panel is connected with one end of each of nine fine fishing lines through an iron sheet pasted on the lower surface of the panel, the other ends of three of the fine fishing lines are respectively connected with three small balls, two fine fishing lines are respectively connected with two ends of steel wires, and the four corners of a steel wire net are respectively connected with the other four fine fishing lines. The spatial geometry demonstration teaching aid provided, being simple in structure, convenient for material drawing, low in cost, and convenient to use, can demonstrate the position relations of various points, lines, planes, and is suitable for wide popularization and application.

Description

A kind of mathematical education space geometry demonstration teaching aid

Technical field

The utility model relates to a kind of mathematical education space geometry demonstration teaching aid, belongs to teaching tool.

Background technology

Space geometry is than indigestibility, the basis of space geometry is point, line, surface and their position relationship, the basis of grasping space geometry is very important to having learnt space geometry, so the teacher will use the space geometry demonstration teaching aid when saying the space geometry core curriculum, make the student see intuitively point, line, surface and their position relationship, deepen the understanding to the space geometry basis.Existing space geometry demonstration teaching aid complex structure, used inconvenience, is not suitable for generally promoting the use of.

The utility model content

The purpose of this utility model is to provide a kind of student of convenience to understand, intuitively a kind of mathematical education space geometry demonstration teaching aid of point, line, surface and their position relationship in reaction compartment geometry.

Technical solution is as follows:

The utility model comprises demo rack, and demo rack consists of one flat plate and four root posts, and the upper end of four root posts is located vertical being fixedly connected with the following of flat board near four jiaos respectively; Dull and stereotyped upper surface, lower surface are equipped with nine blocks of magnet, and the magnet on upper and lower surface relies on the magnetic force connection of attracting each other in twos relatively; Nine blocks of magnet on dull and stereotyped lower surface are connected with an end of nine thin fishing lines by the iron plate that is attached to its lower surface respectively, wherein the other end of three thin fishing lines is connected with three beads respectively, two thin fishing lines are connected with the two ends of steel wire respectively, and four angles of woven wire are connected with remaining four thin fishing lines respectively.

The magnet of the lower surface of described flat board relies on the upper surface of magnetic attraction and an iron plate to be affixed, and the lower surface of every iron plate all is fixedly connected with a hook; The upper end of nine thin fishing lines all is tied to form annulus and is hung on the iron plate hook.

On described three beads, a circular hole run through is all arranged, the lower end of three thin fishing lines is passed respectively the circular hole on corresponding bead and is that a knot connects.

The flat board of described demo rack adopts permeability magnetic material, and dull and stereotyped lower surface is provided with 9 blocks of magnet 2.

The beneficial effects of the utility model are: simple in structure, to draw materials conveniently, and cost is low, easy to use, can demonstrate the position relationship of various point, line, surface, is applicable to generally promoting the use of.

The accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is magnet of the present utility model, thin fishing line and bead syndeton schematic diagram.

Embodiment

See figures.1.and.2, the upper surface of the utility model demo rack 1 middle plateform 8, lower surface is equipped with nine blocks of magnet 2, upper surface, the corresponding setting in twos of the magnet 2 of basal surface, rely on the magnetic force connection that attracts each other, magnet 2 on basal surface is connected with thin fishing line 4 one ends by the hook on iron plate 3, article nine, pass through respectively the through hole on bead 5 in thin fishing line 4 on three, by setting fastening fixed pellet position, bead 5 is suspended on thin fishing line 4 and forms a little, two thin fishing lines 4 wherein are connected with steel wire 6 two ends respectively, form line, four angles of woven wire 7 are connected with remaining four thin fishing lines 4 respectively, form a face.

Using method and principle: each bead 5 is a point, steel wire 6 is a line, woven wire 7 is a face, change the point, line, surface high and low position by the length that changes thin fishing line 4, position by moving magnet 2 can change point, line, surface position all around, reaches the position relationship of ocular demonstration point, line, surface.If demonstration line and face intersect, only an end of steel wire 6 need to be passed from the corresponding mesh of woven wire 7, be to hitch again steel wire 6 lower end of the thin fishing line 4 of steel wire 6 also can be passed from the corresponding mesh of woven wire 7.Thin fishing line 4 is transparent thin fishing line, less to visual impact.

Claims

1. a mathematical education space geometry demonstration teaching aid, comprise demo rack (1), it is characterized in that, demo rack (1) consists of one flat plate (8) and four root posts (9), and the upper end of four root posts (9) is located vertical being fixedly connected with the following of dull and stereotyped (8) near four jiaos respectively; Upper surface, the lower surface of dull and stereotyped (8) are equipped with nine blocks of magnet (2), and the magnet on upper and lower surface (2) relies on the magnetic force connection of attracting each other in twos relatively; Nine blocks of magnet (2) on dull and stereotyped (8) lower surface are connected with an end of nine thin fishing lines (4) by being attached to following iron plate (3) respectively, wherein the other end of three thin fishing lines (4) connects with three beads (5) respectively, two thin fishing lines (4) are connected with the two ends of steel wire (6) respectively, and four angles of woven wire (7) are connected with remaining four thin fishing lines (4) respectively.

2. a kind of mathematical education space geometry demonstration teaching aid as claimed in claim 1, it is characterized in that, the magnet (2) of the lower surface of described flat board (8) relies on the upper surface of magnetic attraction and an iron plate (3) to be affixed, and the lower surface of every iron plate (3) all is fixedly connected with a hook (10); The upper end of nine thin fishing lines 4 all is tied to form annulus and is hung on hook (10).

3. a kind of mathematical education space geometry demonstration teaching aid as claimed in claim 1, it is characterized in that, a circular hole run through is all arranged on described three beads (5), and the lower end of three thin fishing lines (4) is passed respectively the circular hole on corresponding bead (5) and is that a knot connects.

4. a kind of mathematical education space geometry demonstration teaching aid as claimed in claim 1, is characterized in that, dull and stereotyped (8) adopt permeability magnetic material, and dull and stereotyped (8) lower surface of demo rack (1) is provided with 9 blocks of magnet (2).