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应用万能模型板的目的是为了發展学生的空間观念和獲得根据命題已給条件來構造立体模型的过程中的技能。万能模型板是由榫接的乾木板条製成的,万能模型板的大小是:600×400公厘,厚度25-30公厘。 a) 万能模型板的設計圖 距离板的每一边緣20公匣处繪一矩形,再繪出对角線而求得板的中心,以長和寬的中點各繪中線,將水平中線四等分,在板上穿鑽直徑是3公厘的小窟窿(如圖1所示),这样的小窟窿共有11个,这些小窟窿是用以支持撑架的。应用小窟窿9,10和11为圓心,中線長度的四分之一为半徑繪圓周,在这些圓周中繪內接正三角形、正方形和正六边形,並使它們的頂點对应地与小窟窿8,9,4,10和11相重合。利用板的对角線繪等腰梯形、矩形、菱形和平行四边形、使得它們对角線的交點与小窟窿10相重合。
The purpose of applying the universal model board is to develop the student’s spatial concept and acquire skills in the process of constructing the three-dimensional model according to conditions that the proposition has given. The universal model board is made of spliced dry wood slats. The size of the universal model board is 600 x 400 mm and its thickness is 25-30 mm. a) The design of the universal model board draws a rectangle at a distance of 20mm from each edge of the board, then draws the diagonal to find the center of the board, and draws the middle line at the midpoints of the length and width. The line is divided into four equal parts, and a small hole with a diameter of 3 mm is drilled on the board (as shown in Fig. 1). There are 11 such small holes, which are used to support the support. Use the small holes 9, 10 and 11 as the center of the circle, the quarter of the length of the middle line to draw the circumference of the radius. In these circles, draw inscribed triangles, squares and regular hexagons, and make their vertices correspond to small holes. 8, 9, 4, 10, and 11 coincide. An isosceles trapezoid, a rectangle, a rhombus, and a parallelogram are drawn using the diagonals of the board such that the intersections of their diagonals coincide with the small hole 10 .