发明名称 |
Modular educational response unit |
摘要 |
A modular device for use in educational institutions comprising a housing having opposed, spaced, parallel walls or panels. The first panel which faces the student, has a rectangular cutout area within which is mounted a generally disc-shaped member, rotatable about an axial pin which is secured at both ends to said rectangular cutout area. The disc-shaped member bears two or more response tabs on its viewing surface which are registerable with a viewing area cut out in the other panel which faces the instructor. The first panel also includes a horizontal slot, and a lever is mounted in said slot, which lever is connected to a shutter means to open and close the viewing area in the second panel. A tally counter may be optionally installed on the first panel to count the number of questions to which responses have been provided.
|
申请公布号 |
US4156315(A) |
申请公布日期 |
1979.05.29 |
申请号 |
US19770864634 |
申请日期 |
1977.12.27 |
申请人 |
FIORE, JOHN J;PARIS, MARY |
发明人 |
FIORE, JOHN J;PARIS, MARY |
分类号 |
G09B3/06;(IPC1-7):G09B3/06 |
主分类号 |
G09B3/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|