CN102810275A - 平面几何图形演示仪 - Google Patents

平面几何图形演示仪 Download PDF

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Publication number
CN102810275A
CN102810275A CN 201210233671 CN201210233671A CN102810275A CN 102810275 A CN102810275 A CN 102810275A CN 201210233671 CN201210233671 CN 201210233671 CN 201210233671 A CN201210233671 A CN 201210233671A CN 102810275 A CN102810275 A CN 102810275A
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battens
geometric
plane
screws
plane geometric
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童志强
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Abstract

一种平面几何图形演示仪适用于数学中平面几何教学。使学生直观地理解几何图形性质和特征。平面几何图形演示仪就是让几何图形动起来，在动态过程中学习知识，掌握特殊图形之间的区别和联系。该平面几何图形演示仪由五根木条，十颗螺丝及二根细线构成，五根木条中间开槽，螺丝上在槽中可滑动，细线套在螺丝上，五根木条其中二根长30厘米三根长40厘米，五根木条十颗螺丝及二根细线的各种组合构成各种平面图形。

Description

平面几何图形演示仪
技术领域
本发明涉及一种用于数学教学的设备，具体涉及一种平面几何图形演示仪。
背景技术
 教学中发现初中阶段的几何图形虽然简单但没有教具能把各种几何图形有机的组合起来，就是让学生看一些图片，我所做的平面几何图形性质演示仪不但让学生能看一看，而且还让学生能动一动；使学生直观地理解几何图形性质和特征。平面几何图形演示仪就是让几何图形动起来，在动态过程中学习知识，掌握特殊图形之间的区别和联系。
发明内容
 为了克服数学教学中教具不足等问题，本发明提供一种平面几何图形演示仪，该平面几何图形演示仪由五根木条，十颗螺丝及二根细线构成，五根木条中间开槽，螺丝上在槽中可滑动，细线套在螺丝上，五根木条其中二根长30厘米三根长40厘米，五根木条十颗螺丝及二根细线的各种组合构成各种平面图形，如图所示。本发明的有益效果是，结构简单方便使用，效果好。
附图说明
图1为平面几何图形演示仪的结构示意图：
其中1是木条，2是螺丝，3是细线，4是槽。
具体实施方式
 图1中，五根木条（1），十颗螺丝（2）及二根细线（3）构成，五根木条（1）中间开槽（4），螺丝（2）上在槽（4）中可滑动，细线（3）套在螺丝（2）上，五根木条（1）其中二根长30厘米三根长40厘米，五根木条（1）十颗螺丝（2）及二根细线（3）的各种组合构成各种平面图形。

Claims (1)

1.平面几何图形演示仪，其特征在于：由五根木条，十颗螺丝及二根细线构成，五根木条中间开槽，螺丝上在槽中可滑动，细线套在螺丝上，五根木条其中二根长30厘米三根长40厘米。
CN 201210233671 2012-07-09 2012-07-09 平面几何图形演示仪 Withdrawn CN102810275A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201210233671 CN102810275A (zh) 2012-07-09 2012-07-09 平面几何图形演示仪

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201210233671 CN102810275A (zh) 2012-07-09 2012-07-09 平面几何图形演示仪

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CN102810275A true CN102810275A (zh) 2012-12-05

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014121698A1 (zh) * 2013-02-06 2014-08-14 Hu Shuhua 一种多边形动态演示教具
CN106781887A (zh) * 2017-02-04 2017-05-31 邓启民 一种教学用平面图形演示器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014121698A1 (zh) * 2013-02-06 2014-08-14 Hu Shuhua 一种多边形动态演示教具
CN106781887A (zh) * 2017-02-04 2017-05-31 邓启民 一种教学用平面图形演示器

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Application publication date: 20121205