CN202771718U

CN202771718U - Graticules teaching aid locator

Info

Publication number: CN202771718U
Application number: CN 201220518012
Authority: CN
Inventors: 邹阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-09-22
Filing date: 2012-09-22
Publication date: 2013-03-06
Anticipated expiration: 2022-09-22

Abstract

The utility model relates to a graticules teaching aid locator, which comprises a sphere, a support, a latitude tessellator, a positioning pen, a longitude tessellator and a meridian ruler. When students learn knowledge of longitudes, latitudes, warps and wefts, a positioning pen point which is clamped in the latitude tessellator rotates a circle around the sphere after moving to close to a zero latitude value arranged on the support, a 0 degree weft (the equator) appears on the sphere, the longitude tessellator is sleeved in the sphere, the centers of eighteen positioning holes which are arranged on the longitude tessellator are consistent to align the 0 degree weft (the equator), then intersection points of the sphere and the 0 degree weft (the equator) are pointed in the eighteen positioning holes through the positioning pen, a ruler surface of the meridian ruler and a spherical surface of the sphere are fit by bending the meridian ruler, a certain point in the eighteen points is extruded in a kidney slot simultaneously, and the students can orderly draw eighteen equational longitude lines along one side of the kidney slot through the positioning pen. The graticules teaching aid locator has twice the result with half the effort for students to master conception of the warps and the wefts, and has the advantages of simple structure, clear principle, convenient operation and intuitive image.

Description

A kind of graticules orientator of giving financial aid to students

Technical field

The utility model relates to a kind of instrument of giving financial aid to students, and particularly a kind ofly can help the student to draw graticules and the instrument that can specifically locate at earth model, belongs to the teaching instrument and equipment technical field.

Background technology

On terrestrial globe or map, can see many warps and parallel, these warps and parallel be weave in length and breadth, and forming a large net that covers the earth is graticules.Graticules is equivalent to the planimetric coordinates of mathematics the inside, and it can play the effect of definite position, convenient navigation, and it is widely used in the fields such as military affairs, navigation, aviation, traffic, meteorological observation.With regard to junior middle school's Geography, warp and weft is the Knowledge Base of Students ' Learning geography, in the content of seven grades geographical first volume chapter 1 first segment the second frames " warp and parallel ", comprises concept, the characteristics of warp and weft; The division of longitude and latitude; The division of southern hemisphere and northern hemisphere, thing hemisphere; The division of basic, normal, high latitude; Special parallel and through knowledge such as coils all is the main points that the student should grasp.Because concept and knowledge point are a lot, it is larger to understand difficulty, and the student obscures easily.The class mark to the requirement of this part content is: " use terrestrial globe, say the division of warp and parallel, longitude and latitude.Can say warp and parallel, will allow the student understand fully concept and the characteristics of warp, parallel; Can say the division of longitude and latitude, will allow the student understand fully thing warp, the separatrix of north and south latitude and the arrangement regulation of longitude and latitude, and use relevant knowledge to judge south latitude, north latitude, east longitude, west longitude etc.Seven classmans generally are 13 years old, 14 years old, just stepped into the junior one from primary school, begin a brand-new learning life, their direct experience is few, understandability is poor, get used to rote memory, the mode of thinking is in by the progressively transition period of thinking in images to abstract thinking, and the ability of analysis, conclusion, reasoning and space imagining ability are also relatively poor.In traditional teaching, the teacher uses the teaching aid such as terrestrial globe, plate figure, sketch and various inspiration means to help the student to understand teaching material mostly.But understand this section knowledge for the student, often do not do some that understand, that does not quite understand accounts for major part, really do understand hardly on account for a few percent.In the teaching, teacher is arranged for this situation, attempt the property reviewed and retell, even now also produces little effect.

Summary of the invention

The purpose of this utility model is to provide a kind of graticules orientator of giving financial aid to students, and is intended to help the student to understand the concept of graticules and by the geographic position in the concrete zone of mark personally, increases the permeability of students " warp and parallel " knowledge.

To achieve these goals, the utility model takes following technical scheme to implement: a kind of graticules orientator of giving financial aid to students, comprise spheroid, support, latitude dividing instrument, pen with means for holding it in right position, longitude lattice circle, warp chi, the version of spheroid and support and mutual position, connected mode are consistent with terrestrial globe, T shape skeleton one side of support is provided with latitude value, it is characterized in that

Surface coverage one deck light color paper of described spheroid;

Described latitude dividing instrument adopts non-metallic elastic material to make, and which is provided with T-slot, and the T shape skeleton of described T-slot wedging on support is outside;

T-slot one side in the described latitude dividing instrument is provided with the pen clip hole, and the axis in described pen clip hole is perpendicular to the sphere of spheroid;

Described pen with means for holding it in right position is fixed by screws in the pen clip hole, and nib contacts with the light paper of spherome surface;

Described longitude lattice circle adopts sheet metal or plastics to make, and its internal diameter girth equates with the spheroid girth, and conplane girth is provided with 18 equal dividing and positioning holes;

Described warp chi adopts sheet metal or plastics to make, the two ends of warp chi are provided with slot, the middle part is provided with the strip kidney slot of going up along its length, the width of slot equals the connecting pin diameter that bracket clamp enters spheroid, straight length between two slots bottom deducts the connecting pin diameter that bracket clamp enters spheroid less than or equal to half of spheroid girth, the width of kidney slot is identical with the tip of a pencil diameter, and the length of kidney slot is less than the straight length of two slots bottom, and the central lines of kidney slot and slot.

The student is when learning and mastering parallel knowledge, the location nib that will be clamped in the latitude dividing instrument by the utility model moved near one week of spinning ball behind the zero latitude value on the support, then present 0 ° of parallel (equator) that is personally drawn by student oneself at spheroid, the running fix pen, equally, can draw arbitrary latitude line.The student is when learning and mastering warp knowledge, by the utility model longitude lattice snare is entered spheroid, the consistent 0 ° of parallel (equator) that is drawn by student oneself of aiming in 18 pilot hole centers that the lattice circle is provided with is pointed out respectively the point that intersects with the equator on the sphere with pen again in 18 pilot holes.Warp chi in crooked the utility model makes two ends insert the connecting pin of support and spheroid and the sphere of chi face and spheroid is fitted, in 18 points certain is a bit highlighted in kidney slot, at this moment the student can draw with pen the warp of this point along a side of kidney slot, mobile warp chi can make the student draw easily successively 18 on spheroid to divide equally warp, and graticules produces therefrom.

Useful contribution of the present utility model is: for the student provides a kind of instrument of giving financial aid to students that can personally draw graticules, for understand and master and the concept of keeping warp and weft firmly in mind the effect of getting twice the result with half the effort is arranged, the manipulative ability that simultaneously can cultivate the student excites the enthusiasm of Students ' Learning geography to a great extent.Simultaneously the utility model also have simple in structure, principle clear, easy to operate, visual in image remarkable advantage.

Description of drawings

Fig. 1 is the structural representation of spheroid and support in the utility model;

Fig. 2 is A-A cross section sectional structure synoptic diagram among Fig. 1;

Fig. 3 is the main TV structure synoptic diagram of longitude lattice circle in the utility model;

Fig. 4 is B-B cross section sectional structure synoptic diagram among Fig. 3;

Fig. 5 is the main TV structure synoptic diagram of the utility model longitude chi;

Fig. 6 is C-C cross section sectional structure synoptic diagram among Fig. 5;

Fig. 7 is the constitutional diagram that longitude lattice snare enters spheroid lattice Longitude In System in the utility model;

Fig. 8 is the constitutional diagram when the longitude chi inserts bracket pins and fits in sphere picture warp in the utility model.

In Fig. 1,2,3,4,5,6,7,8: 1 spheroid, 2 supports, 201 connecting pins, 3 latitude dividing instruments, 301 pen with means for holding it in right position, 302 screws, 4 longitude lattice circles, 401 pilot holes, 5 warp chis, 501 slots, 502 kidney slots.

Embodiment

As shown in Figure 1, the version of spheroid 1 and support 2 and mutual position, connected mode are consistent with the terrestrial globe that sell the market, difference be spheroid 1 surface coverage one deck white paper, T shape skeleton one side of support 2 is provided with latitude value; As shown in Figure 2, latitude dividing instrument 3 adopts transparent plastic to make, and which is provided with T-slot, and the T shape skeleton that T-slot is fastened on the support 2 is outside; T-slot one side in the latitude dividing instrument 3 is provided with the pen clip hole, and the axis in pen clip hole is perpendicular to the sphere of spheroid 1; Pen with means for holding it in right position 301 is fixed in the pen clip hole by screw 302, and nib contacts with the white paper on spheroid 1 surface; Shown in Fig. 3,4, longitude lattice circle 4 adopts sheet metal or plastics to make, and its internal diameter girth equates with spheroid 1 girth, and conplane girth is provided with 18 equal dividing and positioning holes 401; Such as Fig. 5, shown in 6, warp chi 5 adopts sheet metal or plastics to make, the two ends of warp chi 5 are provided with slot 501, the middle part is provided with the strip kidney slot 502 of going up along its length, the width of slot 501 equals connecting pin 201 diameters that support 2 snaps in spheroid 1, straight length between two slots, 501 bottoms deducts connecting pin 201 diameters that support 2 snaps in spheroid less than or equal to half of spheroid 1 girth, the width of kidney slot 502 is identical with the tip of a pencil diameter, the length of kidney slot 502 is less than the straight length of two slots, 501 bottoms, and the central lines of kidney slot 502 and slot 501.

The student at first draws graticules at spheroid when learning and mastering warp and weft knowledge.Mode by Emotional Teaching, require the student to draw the position of the Yancheng, Jiangsu Province (120 ° of east longitudes, 33 ° of north latitude) that is in and the geographic position of China Diaoyu Island (124 ° of east longitudes, 26 ° of north latitude) at spheroid 1, step 1: rotary moving latitude dividing instrument 3 near 1 one weeks of spinning ball behind 33 ° of the latitude values on the support 2, then presents the 33 ° of parallels of north latitude that personally drawn by student oneself at spheroid 1 with the nib of pen with means for holding it in right position 301; Rotary moving latitude dividing instrument 3 near 1 one weeks of spinning ball behind 26 ° of the latitude values on the support 2, then presents 26 ° of parallels of another north latitude at spheroid 1 with the nib of pen with means for holding it in right position 301; As shown in Figure 7, step 2: unplug the connecting pin 201 that support 2 connects spheroid 1, take out spheroid 1 and longitude lattice circle 4 is inserted in spheroid 1, the 0 ° of latitude line in equator is unanimously aimed at 18 pilot hole 401 centers that longitude lattice circle 4 is provided with, and points out respectively the point that intersects with the 0 ° of latitude line in equator on the sphere with pen in 18 pilot holes 401 again; As shown in Figure 8, step 3: spheroid 1 is placed support 2, crooked warp chi 5 makes two end slots 501 insert the connecting pin of support 2 and spheroid 1 and makes the chi face and the applying of the sphere of spheroid 1, simultaneously with in 18 points on the spheroid 1 certain a bit as 120 ° of east longitudes, and this point is highlighted in kidney slot 502, at this moment the student can draw the warp of this point along a side of kidney slot 502 with pen, and the intersection point of 120 ° of warps of this east longitude and 33 ° of parallels of north latitude then is in the position of Yancheng, Jiangsu Province for the student; Step 4: according to the geographic position of Yancheng, Jiangsu Province, be rotated counterclockwise warp chi 5, the consecutive point that make the kidney slot 502 in the warp chi 5 aim at Yancheng, Jiangsu Province location point on the spheroid 1 draw warp, and itself and 26 ° of latitude lines of north latitude are intersected, this point is 140 ° of east longitudes, 26 ° of north latitude, lattice 20 five equilibriums between 26 ° of latitude lines of north latitude in 120 ° of east longitudes and 140 ° of intervals of east longitude, its minute lattice point of 124 ° then is geographic position, China Diaoyu Island, according to terrestrial globe warp indication North and South direction, the rule of parallel indication east-west direction, make the student understand that China Diaoyu Island is positioned at the southeastern direction of Yancheng, Jiangsu Province, approximately apart from being the definite value of 110 kms, just can estimate the Diaoyu Island at a distance of the air line distance of Yancheng, Jiangsu Province by a latitude.

Claims

1. graticules orientator of giving financial aid to students, comprise spheroid, support, latitude dividing instrument, pen with means for holding it in right position, longitude lattice circle, warp chi, the version of spheroid and support and mutual position, connected mode are consistent with terrestrial globe, and T shape skeleton one side of support is provided with latitude value, it is characterized in that

Surface coverage one deck light color paper of described spheroid;

Described warp chi adopts sheet metal or plastics to make, and the two ends of warp chi are provided with slot, and the middle part is provided with the strip kidney slot of going up along its length.

2. a kind of graticules according to claim 1 orientator of giving financial aid to students is characterized in that T-slot one side in the described latitude dividing instrument is provided with the pen clip hole, and the axis in described pen clip hole is perpendicular to the sphere of spheroid.

3. a kind of graticules according to claim 1 and 2 orientator of giving financial aid to students it is characterized in that described pen with means for holding it in right position is fixed by screws in the pen clip hole, and nib contacts with the light paper of spherome surface.

4. a kind of graticules according to claim 1 orientator of giving financial aid to students, the slot width that it is characterized in that described warp chi two ends equals the connecting pin diameter that bracket clamp enters spheroid, and the straight length between two slots bottom deducts the connecting pin diameter that bracket clamp enters spheroid less than or equal to half of spheroid girth.

5. a kind of graticules according to claim 1 orientator of giving financial aid to students is characterized in that the kidney slot width in the described warp chi is identical with the tip of a pencil diameter, and the length of kidney slot is less than the straight length of two slots bottom, and the central lines of kidney slot and slot.