CN86204076U - Demountable "geometric pattern" teaching utensil - Google Patents

Abstract

The utility model relates to a demountable 'geometric pattern' teaching utensil, comprising a suite of proportional plane bracket with different shapes, positive polygonal pyramids, cones, slant prisms with tenons in one end and in two ends and high inserting brackets, tenons as conductor rails and side edges in the two ends and high inserting rods, rectangular planes with concave grooves and tenons, hemispheres, spherical zones and spherical caps. Eyelets and tenon connection on the plane bracket are used to compose various geometric bodies and complex geometry moulds. The utility model has the advantages of convenient assembly and disassembly, low cost, clearness, beautiful appearance, the components is provided with different colors, the teaching utensil can be mass-produced, and the utility model is suitable for the teaching utensil in middle schools and one suite owned by one middle school student.

Description

Demountable "geometric pattern" teaching utensil

A kind of apparatus that is used for mathematical education---mortise reassembling type solid teaching aid.

The student rigidly connects when touching solid geometry and relevant space diagram, space imagining ability and three-dimensional notion can not set up for the moment, for this reason, the teacher is for the ease of teaching, help the very fast grasp education content of student, done a little hollow or solid solids and demonstrated, but the student does not have operational small-sized learning aid after going home as the classroom.

Application number 85203020 " sleeve pipe matching type solid teaching aid " provides the small-sized learning aid that uses to middle school student.But its basic parts are planar linear framework and angle plane elbow, and the incline that therefore connects the back solid has all become two-wire; Connect with sleeve pipe and to add angle plane elbow and make the solid lines plucked that becomes again, it is clear inadequately that whole model seems; The method of using sleeve pipe to connect is simple and convenient not enough.

Now to design a kind of for middle school student can staff one cover, clear light and handy, easy to carry, the simple small-sized learning aid of dismounting attractive in appearance, small-sized.

Mortise reassembling type solid teaching aid is proportional by a cover size, difform plane framework size square figure (1) figure (5), rectangle diagram (4), parallelogram figure (2), equilateral triangle figure (3), size pie diagram (a 6) figure (7) and an end or two ends have the positive polygonal pyramid of tenon, the garden awl, oblique prism incline and high slotting frame figure (10) figure (11) figure (12) figure (13), two ends have tenon to make bus, incline, high inserted link figure (14) figure (15), fluted and rectangular planes figure (8) figure (9) of tenon arranged, spherical crown figure (16), spherical zone figure (17), hemisphere figure compositions such as (18), on the proportional position of each plane framework, be equipped with equirotal eyelet, utilize tenon and being connected of eyelet or groove can constitute various solids and compound solid.

All parts can be that material is made by plastics or bamboo and wood or metal; Same solid can be made up of the different colours parts, also can be made up of the same color parts.

Can also add line according to the needs of solving a problem, the auxiliary part that utilizes colored inserted link or plane framework can do various space lines or cross section, space shows various figures, and service efficiency is very high.

Mortise reassembling type solid teaching aid, its slotting frame, inserted link, tenon, eyelet all are garden shape, and tenon and eyelet is big or small corresponding, and it is all very convenient therefore to connect dismounting.All parts are made by the plastics with different colours, so structure is light and handy, and video is clear attractive in appearance clearly.Adding packing can carry.Can produce in batches, cheap.Can make middle school student's staff one cover in fact, in the inside and outside use of class.

The big square-shaped planar frame diagram of Fig. 1.

Fig. 2 parallelogram plane framework figure.

Fig. 3 equilateral triangle plane framework figure.

Fig. 4 rectangular planes frame diagram.

The little square-shaped planar frame diagram of Fig. 5.

The big garden of Fig. 6 plane framework figure.

The little garden of Fig. 7 plane framework figure.

The reeded rectangle of Fig. 8.

Fig. 9 has the rectangle of tenon.

Figure 10 two ends have the oblique prism incline of tenon and high slotting frame.

Figure 11, Figure 12, Figure 13 one end have garden awl, triangular pyramid, rectangular pyramid incline and the high slotting frame of tenon.

Figure 14, Figure 15 two ends have tenon and make bus, incline and high inserted link.

Figure 16 spherical crown stereographic map.

Figure 17 billiard table stereographic map.

Figure 18 hemisphere stereographic map.

Figure 19 garden platform stereographic map is formed by connecting with tenon and eyelet with six roots of sensation inserted link (Figure 15) by big garden (Fig. 6), little garden (Fig. 7), inserted link (Figure 14).

Figure 20 square stereographic map is formed by connecting with tenon and eyelet by two big squares (Fig. 1) and five inserted links (Figure 15).

Figure 21 ball stereographic map is by spherical crown (Figure 16), billiard table (Figure 17), hemisphere (Figure 18), and the centre strings together it with an inserted link (Figure 15).

Figure 22 rectangular parallelepiped stereographic map is formed by connecting with tenon and eyelet by two rectangles (Fig. 4) and five inserted links (Figure 15).

Figure 23 rectangular pyramid stereographic map is formed by connecting with tenon and eyelet by little square (Fig. 5) and slotting frame (Figure 13).

Figure 24 garden awl stereographic map is formed by connecting with tenon and eyelet with slotting frame (Figure 11) by little garden (Fig. 7).

Figure 25 triangular pyramid stereographic map is formed by connecting with tenon and eyelet by equilateral triangle (Fig. 3) and slotting frame (Figure 12).

Figure 26 oblique prism stereographic map is formed by connecting with tenon and eyelet by two parallelogram (Fig. 2) and slotting frame (Figure 10) and three inserted links (Figure 15).

Figure 27 garden post stereographic map is formed by connecting with tenon and eyelet by two big gardens (Fig. 6) and seven inserted links (Figure 15).

Two intersecting planes of Figure 28 are by reeded rectangle (Fig. 8) and have the rectangle (Fig. 9) of tenon to be formed by connecting with tenon and groove.

Figure 29 square inscribed sphere stereographic map is combined by Figure 20 and Figure 21.

The positive truncated rectangular pyramids of Figure 30 is by big square (Fig. 1), little square (Fig. 5), and an inserted link (Figure 14), four inserted links (Figure 15) are formed by connecting with tenon and eyelet.

Claims (5)

1, a kind of apparatus that is used for mathematical education, mortise reassembling type solid teaching aid, it is proportional by a cover size, difform plane framework is made parts, size square figure (1) figure (5), rectangle diagram (4), parallelogram figure (2), equilateral triangle figure (3), size pie diagram (6) figure (7), it is characterized in that having the positive polygonal pyramid of tenon by one or both ends, the garden awl, oblique prism incline and high slotting frame figure (10) figure (11) figure (12) figure (13), two ends have tenon to make bus, incline, high inserted link figure (14) figure (15), fluted and rectangular planes figure (8) figure (9) of tenon arranged, spherical crown figure (16), spherical zone figure (17), hemisphere figure (18) forms, on the proportional position of each plane framework, be equipped with equirotal eyelet, utilize being connected of tenon and eyelet or groove, can constitute various solids and compound geometric mould.

2, according to the teaching aid of claim 1, it is characterized in that all slotting frame and inserted links, tenon and eyelet are garden shape.

3, according to the teaching aid of claim 1, it is characterized in that same solid can be made up of the different colours parts, also can form by the same color parts.

4,, it is characterized in that all parts are material with plastics or bamboo wood or metal according to the teaching aid of claim 1.

5,, it is characterized in that the auxiliary part that can make various space lines or cross section, space of inserted link or plane framework shows various figures according to the teaching aid of claim 1.

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