CN212208729U

CN212208729U - Geography teaching aid of demonstration usefulness

Info

Publication number: CN212208729U
Application number: CN202021271777.9U
Authority: CN
Inventors: 王晨光; 周丽
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-03
Filing date: 2020-07-03
Publication date: 2020-12-22
Anticipated expiration: 2030-07-03

Abstract

The utility model provides a geographical teaching aid for demonstration, which comprises an earth schematic board, a demonstration board, a sunlight line card and a rotating component; the demonstration board is made of transparent or semitransparent materials, a first circular contour sheet for demonstrating the earth is arranged on the earth demonstration board, a second circular contour sheet for demonstrating changes is arranged on the demonstration board, and the earth demonstration board and the demonstration board rotate relative to the rotating assembly through the rotating through hole; the sunlight line card and the demonstration board rotate synchronously. The utility model discloses simple structure, the teaching cost has not only been practiced thrift to the simple operation, and when acquireing audio-visual geographical knowledge, maneuverability is strong, arouses student's study enthusiasm.

Description

Geography teaching aid of demonstration usefulness

Technical Field

The utility model relates to an auxiliary teaching field especially relates to a geographical teaching aid of demonstration usefulness.

Background

In the geography learning, the revolution of the earth around the sun can cause the movement of the sun direct point, and bring the phenomena of change of day and night length, change of the height and azimuth of the solar noon sun, change of the day and night range and the like. Although the multimedia teaching can provide visual experience, students cannot practice the multimedia teaching with hands; the drawing efficiency is low and the dynamic change process is not easy to be expressed. Due to the lack of visual learning aid, the content becomes a great difficulty in high school students.

Disclosure of Invention

In order to solve the problem, the utility model provides a geography teaching aid of demonstration usefulness.

The main contents of the utility model include:

a geography teaching aid for demonstration comprises an earth schematic board, a demonstration board, a simulation board and a free quantitative board; the earth schematic board is provided with an upper surface and a lower surface which are oppositely arranged, the demonstration board is made of transparent or semitransparent materials, and the demonstration board covers the upper surface of the earth schematic board and rotates relative to the earth schematic board; the earth indication plate is characterized in that first circular contour pieces for indicating the earth are arranged on the upper surface and the lower surface of the earth indication plate, and a ground axis line, a north coil line, a north return line, an equator line, a south return line and a south coil line are arranged in the first circular contour pieces; the demonstration board is provided with a second circular contour sheet for demonstrating changes, and the diameters of the first circular contour sheet and the second circular contour sheet are the same; the simulation board comprises a sunlight line card and a polaris card, and the sunlight line card and the demonstration board synchronously rotate; the north starry card is fixedly arranged on the lower surface of the earth schematic plate and is positioned above the north pole of the first circular contour sheet on the earth schematic plate; the free quantitative plate is rectangular and made of transparent or semitransparent materials, and rotates relative to the earth schematic plate and the demonstration plate; a quantitative standard line is arranged on the free quantitative ruler; when the free measure ruler is rotated, the quantitative standard line coincides with the radius of the first circular profile piece.

Preferably, the quantitative angle card is fan-shaped and is respectively arranged on the upper surface and the lower surface of the earth schematic plate, the vertex of the quantitative angle card coincides with the center of the first circular contour sheet, one radius edge of the quantitative angle card coincides with the equator line on the right side of the ground axis, the other radius edge of the quantitative angle card coincides with the connecting line of the end point of the arctic circle line on the left side of the ground axis and the center of the first circular contour sheet, and the radius of the quantitative angle card is smaller than that of the first circular contour sheet.

Preferably, the ground circle clamp is semicircular and arranged on the right side of the first circular profile piece on the upper surface of the earth schematic plate, and the horizontal line of the ground circle clamp is tangent to the arc line of the first circular profile piece.

Preferably, the first circular contour sheet arranged on the upper surface of the earth schematic plate is further provided with a plurality of longitude lines and a plurality of specific latitude lines, the number of the horizontal circle clips is multiple, and the horizontal lines of the plurality of the horizontal circle clips are tangent lines of intersection points of two or more of the north circle line, the north return line, the equator line, the south return line and the specific latitude lines and the first circular contour sheet.

Preferably, the ground plane circle card is adhered to or printed on the upper surface of the globe schematic plate.

Preferably, the horizon ring is also arranged on the free measuring scale, and one end of the quantitative standard line is connected with the middle point of the horizontal line of the horizon ring; when the free measuring scale rotates, the horizontal line of the horizon circle on the free measuring scale is tangent to the first circular contour sheet.

Preferably, the sunlight line card is arranged on the outer side of the right side of the second circular profile sheet and is provided with an arc edge matched with the second circular profile sheet; the polaris card is arranged on the outer side above the first circular contour sheet on the lower surface of the earth schematic plate and is provided with an arc edge matched with the first circular contour sheet.

Preferably, the second circular contour sheet is pasted or printed on the demonstration board, and the sunlight line card is pasted or printed on the demonstration board; the polaris card is adhered to or printed on the lower surface of the earth schematic plate.

Preferably, the number of the free quantitative plates is 2, and the free quantitative plates are respectively arranged above the demonstration plate or on the lower surface of the earth demonstration plate.

Preferably, the earth indication board, the demonstration board and the free quantitative board are correspondingly provided with a rotating through hole, a rotating assembly is arranged in the rotating through hole, and the rotating assembly is a bolt and a nut.

The beneficial effects of the utility model reside in that: the utility model provides a geographical teaching aid that demonstration was used, simple structure, the teaching cost has not only been practiced thrift to the simple operation, and when acquireing audio-visual geographical knowledge, maneuverability is strong, arouses student's study enthusiasm.

Drawings

FIG. 1 is a schematic view of the structure of the upper surface of the earth schematic plate and the quantitative angle clip and the ground plane ring clip of the present invention; (ii) a

Fig. 2 is a schematic structural view of the demonstration board and the sunlight line card of the present invention;

FIG. 3 is a schematic structural view of the demonstration board, the free quantitative board and the earth schematic board after being combined;

FIG. 4 is a schematic view of the structure of the lower surface of the earth schematic plate.

Detailed Description

The technical solution protected by the present invention will be specifically described below with reference to the accompanying drawings.

Please refer to fig. 1 to 4. The utility model provides a geographical teaching aid for demonstration, which comprises an earth schematic board 1, a demonstration board 2 and a simulation board, wherein the simulation board comprises a sunlight line card 3 and a polaris card 5; specifically, the demonstration board 2 is made of a transparent or semitransparent material, and the demonstration board 2 is arranged above the earth schematic board 1; all be provided with the first circular profile piece 10 that is used for signalling the earth on the upper surface of earth schematic board 1 and the lower surface, be provided with the circular profile piece 20 of second that is used for demonstrating the change on the demonstration board 2, first circular profile piece 10 with the diameter of the circular profile piece 20 of second is the same, just first circular profile piece 10 with rotation through-hole 100 has been seted up to the centre of a circle of the circular profile piece 20 of second, be provided with rotating assembly in the rotation through-hole 100, earth schematic board 1 with demonstration board 2 passes through rotation through-hole 100 with rotating assembly 4 rotates relatively.

The earth schematic board 1 and the first circular contour sheet 10 can be made of cardboard, the first circular contour sheet 10 can be attached to the earth schematic board 1, and can also be printed on the earth schematic board 1, similarly, the second circular contour sheet 20 and the demonstration board 2 are both made of hard transparent PVC, and the second circular contour sheet 20 can be arranged on the demonstration board 2 by means of attaching or printing; and the rotating assembly can comprise a bolt and a nut, namely the earth indication plate 1 and the demonstration plate 2 are sleeved on the bolt through the rotating through hole 100 and are fixed through the nut, so that the earth indication plate 1 and the demonstration plate 2 rotate around the bolt.

The utility model discloses in, sunlight ply-yarn drill 3 sets up the right outside of the circular profile piece 20 of second also sets up demonstration board 2's right side, sunlight ply-yarn drill have with the circular arc limit of the circular profile piece 20 looks adaptation of second, sunlight ply-yarn drill 3 with demonstration board 2 integrated into one piece or fixed bonding are in demonstration board 2's one side. Similarly, the polaris card 5 is fixedly arranged on the lower surface of the earth schematic plate 1 and is positioned above the north pole of the first circular contour sheet 10 on the earth schematic plate; the polaris card 5 is adhered to or printed on the lower surface of the earth schematic plate 1.

The free quantitative plate 50 is rectangular and made of transparent or semitransparent materials, and one end of the free quantitative plate 50 is also provided with a rotating through hole so that the free quantitative plate can rotate relative to the earth schematic plate 1 and the demonstration plate 2; a quantitative standard line 50-2 is arranged on the free quantitative rule 50; when the free measuring scale 50 rotates, the quantitative standard line 50-2 coincides with the radius of the first circular contour piece 10, and the number of the free measuring plates 50 is one or two, that is, when the upper surface of the globe panel 1 is observed, the free measuring plate 50 is installed above the demonstration plate 2, and when the lower surface thereof needs to be observed, the free measuring plate 50 is installed on the lower surface of the globe panel 1, and if the number of the free measuring plates 50 is two, the two free measuring plates are configured separately.

In addition, quantitative angle cards 30 are arranged on the upper surface and the lower surface of the earth schematic plate 1, the quantitative angle cards 30 are fan-shaped, and the materials of the quantitative angle cards 30 are transparent or semitransparent materials, such as transparent PVC; the vertex of the quantitative angle card 30 coincides with the center of the first circular contour sheet 10, one radius side of the quantitative angle card coincides with the equator line on the right side of the ground axis, the other radius side of the quantitative angle card coincides with the connecting line of the end point of the arctic circle line on the left side of the ground axis and the center of the first circular contour sheet 10, and the radius of the quantitative angle card 30 is smaller than that of the first circular contour sheet 10; thereby providing a reference for quantitatively observing a variable at a certain latitude.

In one embodiment, the quantitative angle card 30 may be disposed on the first circular profile 10 by means of gluing or printing.

Referring to fig. 1 to 3, the upper surface of the earth schematic plate 1 is used for demonstrating the regression movement of the direct solar point between the north and south gyroids, when the direct solar point is directly irradiated at a certain point, the height and the height angle of the sun at each latitude can be observed, meanwhile, the day and night length of each place can be observed, and the extreme day and night range changes of the north pole and the south pole can be observed during the movement process.

Specifically, in this embodiment, a plurality of warps, ground axes, and north-pole coils, north-return coils, equator, south-return coils, south-pole coils, and a plurality of specific latitudes arranged between the north-pole coils and the south-pole coils, such as 45 ° latitudes and 15 ° latitudes, are arranged in the first circular contour sheet 10; a day and night division line 200 for dividing the second round contour sheet 20 into a left semicircle and a right semicircle is arranged in the second round contour sheet; when the demonstration board 2 rotates relative to the earth demonstration board 1, the quantitative angle card 30 can play a role of quantitative rotation angle, and is beneficial for students to observe the day and night length of each latitude, the solar height, the solar altitude at noon and the extreme day and the extreme night range change of south pole and north pole when sunlight directly irradiates to a specific angle.

For more audio-visual observation each latitude north-south direction and sky top position, this teaching aid includes the horizon circle card 40, the horizon circle card 40 semicircular in shape, the horizon circle card 40 sets up the right side of first circular profile piece 10, just the horizon of horizon circle card 40 with the pitch arc of first circular profile piece 10 is tangent, specifically, the horizon circle card 40 is attached on first circular profile piece 10, can also set up through the mode of printing on the first circular profile piece 10.

Preferably, the number of the ground loop cards 40 is plural, and the horizontal line of the plurality of ground loop cards 40 is a tangent of an intersection point of two or more of the north pole loop line, the north return line, the equator line, the south return line, the south pole loop line and the specific latitude line with the first circular contour sheet 10.

In addition, in order to facilitate students to quantitatively observe the latitude and the solar noon altitude, the teaching aid further comprises a free quantitative plate 50, wherein the free quantitative plate 50 is rectangular, and one end of the free quantitative plate 50 rotates relative to the earth schematic plate 1 and the demonstration plate 2 through the rotating assembly 4; the free measuring ruler 50 is provided with a horizontal ring 50-1 and a quantitative standard line 50-2, and one end of the quantitative standard line 50-2 is connected with the middle point of the horizontal line of the horizontal ring 50-1; when the free measuring staff 50 is rotated, the quantitative standard line 50-2 coincides with the radius of the first circular profile piece 10, and the horizontal line of the horizon circle on the free measuring staff 50 is tangent to the first circular profile piece.

Referring to fig. 4, the upper surface of the earth schematic plate 1 is used for demonstrating the elevation angle changes of the arctic stars at different latitudes to find the relationship between the arctic stars and the earth schematic plate, and can be verified by means of geometric knowledge, so that students can visually understand the abstract knowledge point that the elevation angle of the arctic star at a place in the northern hemisphere is equal to the local latitude, and the teaching aid can better understand the meanings of the latitude and the altitude angle of a certain celestial body.

The free quantitative plate 50 is rotated to freely move the horizontal ring 50-1 thereon, so as to measure the relation between the latitude of the north pole N, the north pole circle line and the return line and the elevation angle of the north polar star, and then the latitude of any place of the northern hemisphere and the elevation angle of the north polar star can be measured by the quantitative angle card 30.

In addition, an area for indicating the name of the teaching aid is arranged on one side of the earth schematic board 1, such as a geographical meaning demonstration teaching aid for the movement of the direct sun point, which is indicated on the upper surface of the earth schematic board, and a different latitude arctic star elevation angle demonstration teaching aid, which is indicated on the lower surface of the earth schematic board. The technical scheme can be further improved, for example, for the convenience of rotation, a handle is arranged on the corresponding structure, and the improvement is the simple improvement of the utility model.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A geography teaching aid for demonstration is characterized by comprising an earth schematic board, a demonstration board, a simulation board and a free quantitative board; the earth schematic board is provided with an upper surface and a lower surface which are oppositely arranged, the demonstration board is made of transparent or semitransparent materials, and the demonstration board covers the upper surface of the earth schematic board and rotates relative to the earth schematic board; the earth indication plate is characterized in that first circular contour pieces for indicating the earth are arranged on the upper surface and the lower surface of the earth indication plate, and a ground axis line, a north coil line, a north return line, an equator line, a south return line and a south coil line are arranged in the first circular contour pieces; the demonstration board is provided with a second circular contour sheet for demonstrating changes, and the diameters of the first circular contour sheet and the second circular contour sheet are the same; the simulation board comprises a sunlight line card and a polaris card, and the sunlight line card and the demonstration board synchronously rotate; the north starry card is fixedly arranged on the lower surface of the earth schematic plate and is positioned above the north pole of the first circular contour sheet on the earth schematic plate; the free quantitative plate is rectangular and made of transparent or semitransparent materials, and rotates relative to the earth schematic plate and the demonstration plate; a quantitative standard line is arranged on the free quantitative ruler; when the free measure ruler is rotated, the quantitative standard line coincides with the radius of the first circular profile piece.

2. A geographic teaching aid for demonstration purposes according to claim 1, further comprising a quantitative angle card, the quantitative angle card being fan-shaped and disposed on the upper and lower surfaces of the earth schematic plate, respectively, the apex of the quantitative angle card coinciding with the center of the first circular outline slice, and one radius of the card coinciding with the equator line on the right side of the ground axis, the other radius coinciding with the line connecting the end point of the arctic circle line on the left side of the ground axis and the center of the first circular outline slice, and the radius of the card being smaller than the radius of the first circular outline slice.

3. A geography teaching aid for demonstration according to any of claims 1 or 2, further comprising a ground level circle clip, wherein the ground level circle clip is semicircular, the ground level circle clip is arranged on the right side of the first circular contour piece on the upper surface of the earth schematic plate, and the horizontal line of the ground level circle clip is tangent to the arc line of the first circular contour piece.

4. A geographic teaching aid for demonstration purposes as claimed in claim 3, wherein the first circular contour piece provided on the upper surface of the earth schematic plate is further provided with a plurality of meridian lines and a plurality of specific latitude lines, the number of the horizontal loop cards is plural, and the horizontal lines of the plurality of horizontal loop cards are tangent lines of the intersection points of two or more of the north loop line, the equator line, the south loop line and the specific latitude lines with the first circular contour piece.

5. A geographical teaching aid as claimed in claim 3 wherein the horizon circlip is glued or printed onto the upper surface of the earth schematic board.

6. A geographical teaching aid as claimed in claim 3 wherein the horizon circle is further provided on the free measure scale and one end of the quantitative standard line is connected to the midpoint of the horizontal line of the horizon circle; when the free measuring scale rotates, the horizontal line of the horizon circle on the free measuring scale is tangent to the first circular contour sheet.

7. A geographical teaching aid of demonstration according to claim 1 wherein the sunlight line clip is disposed outside the right side of the second circular profile piece and has a circular arc edge adapted to the second circular profile piece; the polaris card is arranged on the outer side above the first circular contour sheet on the lower surface of the earth schematic plate and is provided with an arc edge matched with the first circular contour sheet.

8. A geographical teaching aid according to claim 7 wherein the second circular contour piece is affixed to or printed on the demonstration board and the solar line card is affixed to or printed on the demonstration board; the polaris card is adhered to or printed on the lower surface of the earth schematic plate.

9. A geography teaching aid for demonstration according to claim 2, wherein the number of said free quantitative plates is 2, and said free quantitative plates are respectively disposed above said demonstration plate or on the lower surface of said earth demonstration plate.

10. The geography teaching aid for demonstration according to claim 1, wherein the earth schematic plate, the demonstration plate and the free quantitative plate are correspondingly provided with rotating through holes, rotating assemblies are arranged in the rotating through holes, and the rotating assemblies are bolts and nuts.