Planar pattern demonstration device

The utility model relates to a planar pattern demonstration device, which belongs to math teaching aids. Through holes are arranged on the two ends of each of four draw rods respectively, a connecting shaft is arranged in each through hole, the two ends of the draw rods are connected with each other...

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Bibliographic Details
Main Author ZHANG XIANXUE
Format Patent
LanguageChinese
English
Published 29.09.2010
Subjects
ADVERTISING
APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND,DEAF OR MUTE
CRYPTOGRAPHY
DIAGRAMS
DISPLAY
EDUCATION
EDUCATIONAL OR DEMONSTRATION APPLIANCES
GLOBES
PHYSICS
PLANETARIA
SEALS
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Summary:The utility model relates to a planar pattern demonstration device, which belongs to math teaching aids. Through holes are arranged on the two ends of each of four draw rods respectively, a connecting shaft is arranged in each through hole, the two ends of the draw rods are connected with each other to form a tetragonal structure, a movable rod is arranged on one of the connecting shafts, and an angle gauge is arranged on the connecting shaft corresponding to the movable rod; and the draw rod has a sleeve structure. The planar pattern demonstration device can demonstrate rectangle, square, trapezoid, triangle, etc. during teaching, so that students can intuitively observe the relationship among the patterns and has the advantages of simple structure, convenient use, simple fabrication and low cost.
Bibliography:Application Number: CN20092352496U