Yangtze river water come-and-go model

Abstract

The invention belongs to the technical field of teaching tools, and relates to a geographic or natural teaching aid, particularly a Yangtze River water come-and-go model. The Yangtze River water come-and-go model is composed of two parts, namely a miniature electric sprayer and a thermoplastically molded hard plastic film shell. According to the technical scheme of the above prepared Yangtze River water come-and-go model, the hard plastic film shell is rectangular block-shaped, colorfully printed and thermoplastically molded to be formed high in west and low in east. Meanwhile, the hard plastic film shell represents the convex and concave characteristics of the Yangtze River basin terrain. The water of the Yangtze River is enabled to flow in U-shaped grooves which represent the trunk and the branches of the Yangtze River by means of the miniature electric sprayer so as to realize the demonstration effect, wherein the grooves are formed in the hard plastic film shell. Therefore, the geographical knowledge of the Yangtze River can be expressed more intuitively and more vividly compared with the effect of images and texts on geographic textbooks as plane presswork. The effect of teaching through lively activities is realized, and the interest of students in learning the Yangtze River geographical knowledge is stimulated. Meanwhile, the knowledge is more easily understood, and is easy to learn and remember.

Description

Technical field [0001] The invention belongs to the technical field of teaching appliances, and relates to a geography or nature teaching aid, specifically a model of the water coming and going of the Yangtze River. Background technique [0002] The Yangtze River is the largest river in China and the third largest river in the world. It originated from the roof of the world-the southwest side of Dandonggela Peak in the Tanggula Mountains on the Qinghai-Tibet Plateau. The main stream flows through Qinghai, Tibet, Sichuan, Yunnan, Chongqing, Hubei, and Hunan. , Jiangxi, Anhui, Jiangsu, and Shanghai 11 provinces, municipalities and autonomous regions, which are injected into the East China Sea east of Chongming Island, with a total length of more than 6,300 kilometers and a drainage area of ​​1.8 million square kilometers, accounting for about 20% of China’s land area. There are more than 50 watersheds in the whole This ethnic group has a population of about 400 million. Most peopl...

AI Technical Summary

Problems solved by technology

Most people learn about the geography of the Yangtze River from geography textbooks, but geography textbooks are flat-printed graphics and texts, which are boring and not intuitive. Although the three-dimensional sand table model of the Yangtze River is intuitive, it is cumbersome and difficult to transport and Portable, and the cost is high, and it cannot be demonstrated in the geography classroom that the water of the Yangtze River comes and goes

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