CN200969183Y

CN200969183Y - Sunlight lighting teaching chart board

Info

Publication number: CN200969183Y
Application number: CN 200620099685
Authority: CN
Inventors: 杨世江
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-10-30
Filing date: 2006-10-30
Publication date: 2007-10-31
Anticipated expiration: 2016-10-30

Abstract

The utility model relates to a teaching device used by the teachers, in particular to a solar lighting instructional board. A circular terrestrial meridian plate is connected with a semicircular rule plate through a connecting bolt. The circular terrestrial meridian plate is mapped with the equator, the tropic of cancer, the tropic of Capricorn, the South Pole, the North Pole, the Antarctic Circle and the Arctic Circle. The circular part of the semicircular rule plate indicates the night hemisphere while the rule part indicates the direct optical line of the sun. The utility model provides a clear view of the knowledge of geography so as to be understandable and can intrigue the students to study.

Description

Solar irradiation teaching chart board

Technical field

The utility model relates to the teaching aid that a kind of teacher uses, the chart board of solar irradiation teaching specifically.

Background technology

In the present geography teaching in middle school, when relating to astronomic knowledges such as " recurrent mutation of subsolar point ", " regularity of distribution of height of the sun at noon and the calculating of height of the sun at noon ", " whole world is the length Changing Pattern round the clock ", " polar day, polar night " and " daytime hemisphere, night hemisphere, terminator ", the teacher explains difficulty, the student to the understanding of knowledge, grasps more difficult in study.Wherein Chong reason is exactly not have or do not have suitable teaching aid, can do teacher's " helper ", can open the key of repository as the student, thereby has increased the difficulty of student to knowledge understanding.When saying " recurrent mutation of subsolar point ", just there is not ready-made teaching aid to use as teacher.For this reason, teacher usually explains this content from picture or by " three-globe instrument ", draws certainly, and is both time-consuming, do not have innervation again, and not directly perceived, it is little that the student is understood knowledge affect.Explain by means of " three-globe instrument ", the major function of " three-globe instrument " is the revolution motion of the demonstration earth.Demonstrate with " three-globe instrument " " recurrent mutation of subsolar point ", the rule of recurrent mutation than indigestibility and grasp, and uses trouble from the demonstration middle school student, and the teacher often gives it up.

Summary of the invention

The purpose of this utility model is that a kind of teaching aid will be provided, and can reflect geographical knowledges such as " recurrent mutations of subsolar point " very intuitively.

The utility model is achieved in that the transit plate of ball circularly of making the band warp and weft on a plate, by flexibly connecting bolt, links to each other with being with semicircle ruler plate.Draw warp and weft on the earth transit plate, the tropic of Cancer is wherein arranged, the tropic of Capricorn, equator, the Arctic Circle, the Antarctic Circle; Represent that with the semicircular part of semicircle ruler plate night hemisphere, ruler partly represent the direct sunlight line, central point is pointed in its direction termination.

Owing to adopted technique scheme, the utility model can reflect geographical knowledges such as relating to " recurrent mutation of subsolar point " very intuitively, thereby strengthened the understanding of student to knowledge.

Description of drawings

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

Fig. 2 is the semicircular ruler plate of being with of the present utility model.

Fig. 3 is the transit plate of ball circularly of the present utility model.

In the drawings: 1, ball transit plate circularly; 2, the tropic of Cancer; 3, equator; 4, the tropic of Capricorn; 5, the Antarctic Circle; 6, the South Pole; 7, the arctic; 8, the Arctic Circle; 9, be with semicircle ruler plate; 10, coupling bolt.

Embodiment

Ball transit plate (1) is circularly linked to each other with being with semicircle ruler plate (9) by coupling bolt (10).

Ball transit plate (1) is marked with the tropic of Cancer (2), equator (3), the tropic of Capricorn (4), the South Pole (6), the arctic (7), the Arctic Circle (8) circularly.

Semi-circular portions with semicircle ruler plate (9) is represented night hemisphere, and ruler is partly represented the direct sunlight line.

Claims

1, solar irradiation teaching chart board is characterized in that ball transit plate (1) links to each other with being with semicircle ruler plate (9) by coupling bolt (10) circularly.

2, according to the described solar irradiation teaching of claim 1 chart board, it is characterized in that ball transit plate (1) is marked with the tropic of Cancer (2), equator (3), the tropic of Capricorn (4), the Antarctic Circle (5), the South Pole (6), the arctic (7), the Arctic Circle (8) circularly

3, solar irradiation teaching chart board according to claim 1 is characterized in that representing night hemisphere with the semi-circular portions of semicircle ruler plate (9) that ruler is partly represented the direct sunlight line.