Teaching aid is demonstrated to probability for teaching

The utility model provides a teaching aid is demonstrated to probability for teaching, includes the cylindrical bucket that stands of one end open -ended, vertically be equipped with the spout on the inner wall of upright bucket both sides, it has the slider to inlay in the spout, is connected with...

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Bibliographic Details
Main Authors YANG KAI, ZHOU BINGCHEN
Format Patent
LanguageEnglish
Published 18.11.2015
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 provides a teaching aid is demonstrated to probability for teaching, includes the cylindrical bucket that stands of one end open -ended, vertically be equipped with the spout on the inner wall of upright bucket both sides, it has the slider to inlay in the spout, is connected with circular roof between two sliders, still includes the helical spring, the top of spring is connected with the bottom of roof, the lower extreme and the bottom of standing in the bucket of spring are connected, be equipped with the opening on the bucket wall of upright bucket, be equipped with the handle in the opening, the one end and the roof connection of handle. The utility model discloses simple structure pops out through the coin of spring on with the roof, sees the demonstration result according to the positive and negative of coin is audio -visual, and is efficient.
Bibliography:Application Number: CN20152322781U