The mathematics teaching of the utility model with graphic demonstration device relates to a teaching aid, is in the plate is fixed with a telescopic device that is in turn connected with four telescopic device; a retracting device of the sleeve type structure is sheathed in the sleeve, a telescopic rod; each telescopic sleeve and both ends of the telescopic device rod are arranged on the connecting hole. The telescopic rod I fixed on the plate body, the sleeve is connected with a sleeve I II II and III, the telescopic rod sleeve connection, telescopic rod and sleeve connection IV III, a connecting hole is arranged at the other end of the telescopic rod is provided with a fixed column IV, at the end of the telescopic rod. Graphic demonstration device of the utility model is used for mathematics teaching, can realize the mutual transformation between a variety of graphics, which is intuitive, to enhance students' interest in learning and memory, so that students can quickly understand the teacher to express the knowledge points.
【技术实现步骤摘要】
数学教学用平面图形演示器
本技术涉及教学辅助工具,尤其涉及数学教学用平面图形演示器。
技术介绍
目前,在数学平面涉及平面图形的教学中,通常都是由老师在黑板上将其画出来,或者让学生参考教科书上的图形进行讲解,这是一种灌输式教学且需要学生有良好的理解能力和在脑中的想象能力,是十分抽象的,不能够给学生一个直观的演示,学生只能暂时性的接收和理解不能再脑中形成直观的印象,而现有的演示器材都是固定的三角形,梯形等,不能够表达出图形之间的变换关系。
技术实现思路
本技术旨在针对
技术介绍
中存在的不足,而提供的一种数学教学用平面图形演不器。本技术的数学教学用平面图形演示器,是在板上固定了伸缩装置构成,是将四个伸缩装置依次连接;所述的伸缩装置为套筒式结构,是在套筒内套装了伸缩杆构成;每个伸缩装置两端的套筒和伸缩杆上均设有连接孔。作为本技术的进一步改进,伸缩杆I固定在板体上,套筒I与套筒II连接,伸缩杆II与套筒III连接,伸缩杆III与套筒IV连接,在伸缩杆IV的端头设有连接孔,在伸缩杆I的端头设有固定柱。作为本技术的进一步改进,在板体的顶部设有一个以上的挂环。本技术数学教学用平 ...
【技术保护点】
数学教学用平面图形演示器,是在板体(1)上固定了伸缩装置构成,其特征在于将四个伸缩装置依次连接;所述的伸缩装置为套筒式结构,是在套筒内套装了伸缩杆构成;每个伸缩装置两端的套筒和伸缩杆上均设有连接孔。
【技术特征摘要】
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