2results about How to "Improve thinking" patented technology

A multi-functional circumferential angle demonstrator includes a demonstration panel with an annular groove. The demonstrator is characterized by: at least three circumferential sliders slidably disposed within the annular groove; a first protractor rotatably mounted on at least one of the three sliders; and each slider being plugged into and connected to the annular groove. An assembly hole is located at the center of the annular groove; a central slider rotatably disposed within the assembly hole; and a second protractor rotatably mounted on the central slider. The central slider is plugged into and connected to the assembly hole, and the diameter of the assembly hole is equal to the width of the annular groove. An elastic rope is fitted between the central slider and the circumferential sliders. This invention features a simple structure, reasonable design, convenient use, multiple uses, good dynamic demonstration effect, and low cost. It can improve teaching efficiency and quality and is beneficial for promotion and use.

The utility model relates to an interesting jigsaw puzzle which comprises a bottom plate, a layer plate and a supporting column, the top of the bottom plate is fixedly connected with a first positioning column, a first inserting hole is formed in the first positioning column, the bottom of the layer plate is fixedly connected with a second positioning column, and a second inserting hole is formed in the second positioning column. The number of the supporting columns is four, the four supporting columns are distributed at the four corners of the top of the bottom plate, the bottoms of the supporting columns are fixedly connected with first protruding columns, the first protruding columns are connected with the first inserting holes in an inserted mode, the tops of the supporting columns are fixedly connected with second protruding columns, and the second protruding columns are connected with the second inserting holes in an inserted mode. The top of the shelf board is provided with a second group of supporting columns, first convex columns of the second group of supporting columns are mutually inserted into second inserting holes, the top of the second group of supporting columns is provided with a second shelf board, layer-by-layer accumulation and longitudinal assembly are achieved, the process is simple and easy to use, flexibility is improved, and the operational ability and thinking ability of children are further exercised.