CN85205585U

CN85205585U - Moon's phase teaching equipment

Info

Publication number: CN85205585U
Application number: CN 85205585
Authority: CN
Inventors: 李溪林
Original assignee: Individual
Current assignee: Individual
Priority date: 1985-12-21
Filing date: 1985-12-21
Publication date: 1987-07-29

Abstract

The utility model belongs to a geographical teaching aid. In the geographical teaching, the moon's phase actually observed on the sky is different from the shape that the moon is always enlightened one half by the sun on the 'moon's phase formation schematic' in the geography textbook, and students are hard to unify the two moon's phases. The image of the teaching aid is directly viewing, the students can observe the whole change process of the moon's phase in a moon term (the term is 29.53 days) in a short time, the perceptual knowledge and the rational knowledge are combined, and the teaching difficulty of the moon's phase problem is easy to solve. The utility model is applicable to the geography teaching in middle schools and colleges.

Description

Moon's phase teaching equipment

In geography teaching in middle school, exist always such difficult problem: Calipering people on high in the different shape that lacks of the actual phases of the moon Calipering moon garden of seeing, the moon shown in going up with " phases of the moon formation schematic diagram " in the geography teaching material is half shape that is illuminated by the sun always, difference is very big, and the student is difficult to the two is united.

For the student can be combined the theory of acquiring from books with practice, reach the unification of perceptual knowledge and rational knowledge, this teaching aid adopts method intuitively, make the student as bright from earth Shang Away full moon personally, observe it in a short period of time in a lunar month lunation (cycle is 2953), whole change procedures from the crescent-cresent-moon at the first quarter-gibbous moon-full moon-gibbous moon-moon at the last quarter-cresent-crescent, as shown in fig. 1, during observation, the outer finding phases of the moon of the actual phases of the moon of seeing and mirror in the sight glass is formed principle model check one against another, make perceptual knowledge combine and agree with rational knowledge.

Fig. 1: phases of the moon instrument structural plan synoptic diagram.

Fig. 2: phases of the moon instrument structure cut-open view.

As shown in Figure 1, on chassis (C), be equipped with (1)～(8) individual moon stereoscopic model, mark with alphabetical D, represent it in a lunar month lunation around earth operation during eight points of process, the relative position of the sun, the earth, the moon, (A) locates to place sight glass among the figure, represents observer position on the earth.The right-hand sunray of drawing in chassis, expression sunlight is parallel penetrates the direction of coming, every month spherical model right hemisphere Calipering sunward the one side of light be white, expression is illuminated by sunshine, and moon left hemisphere is a black, represents that this simultaneously is subjected to be less than solar radiation black dull state.

As shown in Figure 2, (E) be a square box, chassis (C) placed among the casing, sight glass (A) inserts in the chassis, and the bottom is fixed on the sight glass fixed head (F), can do 360 ° and horizontally rotate, sight glass (A) is formed by connecting by a vertical cylinder and a horizontal cylinder, establish a level crossing (B) on two cylinder intersection location, itself and vertical cylinder inwall are 45, and And is positioned on the intersection point of vertical cylinder axial line and horizontal cylinder axial line its central point.Human eye is looked along vertical cylinder, and light is through reflection, just as place oneself in the midst of eight moon around the earth on, along continuous straight runs is towards the Si Zhou lookout moon.At this moment, lifelike month phase change, upright Calipering is presented in the mirror.Eyes leave sight glass, and finding still is hazy moon model.Two contrast, and come into plain view.

The utility model teaching aid, visual in image, be applicable to geography teaching in middle school, in university's " earth outline " course teaching, also can use this teaching aid. Since simple in structure, draw materials conveniently, being easy to make, the scope of application is wide, the economic benefit height.

Claims

1, a kind of geographical teaching phases of the moon instrument, of the present utility modelly be characterised in that described phases of the moon instrument mainly contains a sight glass [A], sight glass [A] is made up of a vertical garden tube and a horizontal garden tube, at the level crossing [B] of two axial line intersection point places placement one with vertical tube inwall angle at 45, sight glass [A] passes chassis [C] and is bonded on the fixed base plate [F], but 360 ° of angles of along continuous straight runs rotation.

2, according to the described phases of the moon instrument of claim 1, the sight glass (A) that it is characterized in that described phases of the moon instrument places the central authorities of chassis (C), the individual moon stereoscopic model in (1)～(8) that marks with letter (D) is installed on chassis (C), the right hemisphere of moon stereoscopic model is white, left hemisphere color, and chassis C is positioned in the square box (E).