Demonstration device for double integral teaching

Disclosed in the utility is a demonstration device for double integral teaching. The demonstration device comprises a plate body and a small cylinder with a slender rod; frames are arranged around the plate body; and LED lamps are arranged on the frames. A hanging ring is arranged at the top of the...

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Bibliographic Details
Main Authors HONG GANG, YAO HONGMEI
Format Patent
LanguageChinese
English
Published 20.02.2013
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:Disclosed in the utility is a demonstration device for double integral teaching. The demonstration device comprises a plate body and a small cylinder with a slender rod; frames are arranged around the plate body; and LED lamps are arranged on the frames. A hanging ring is arranged at the top of the plate body; and a fine horizontal coordinate slot and a fine vertical coordinate slot are arranged on the plate body, wherein the fine horizontal coordinate slot and the fine vertical coordinate slot are perpendicular to each other and are communicated with each other. Besides, the slender rod is fixed in the middle of the side of the small cylinder, wherein the slender rod is perpendicular to the small cylinder. After a integration domain of a double integral is drawn on the plane of the plate body, the small cylinder with the slender rod is slided in the fine horizontal coordinate slot and the fine vertical coordinate slot; and the integral upper limit and the integral lower limit of the twice integrations can be
Bibliography:Application Number: CN20122475941U