| 摘要 |
An electro-mechanical educational apparatus in the form of a solid tablet representing one side of a house, complete with detachable windows, shutters, and windowboxes. Each detachable window contains a magnet embedded in a unique position with respect to the window outline and adapted to actuate a magnetic switch embedded in the house in a corresponding position at the correct location for the particular window. The correct sequence of assembly of the windows is indicated by line or color markings on the house, by colors of changeable components such as the shutters, or by colors, numerals, words, or other keys on the window boxes, which are to be matched with corresponding indications on the windows.
|
