| 摘要 |
1,242,610. Educational appliances. H. PERRET, and P. J. DUBOST. 18 Dec., 1968 [1 Feb., 1968], No. 60231/68. Heading G5G. Apparatus for use with multiple-choice tests enabling a user to determine whether his answer is correct, the marks scored by his answer, and the correct answer, if different from the chosen answer, comprises two pairs of discs DI, DII and DIII, DIV rotatable about pins 102a and 102b in a flat case 101 having windows 104, 107, 112 in the front face and windows 204, 206, 209 in the rear face. Discs DI and DII bear numerals 103 and 105 ranging from 00-99 and 0-9, respectively, whereby the number of a question being answered is displayed in window 104. Mark 106 on disc DII displayed at window 107 relates to the test in which the question being answered occurs. Disc DIII is set to display the number of the chosen answer in window 112. On the reverse side, disc DI carries green and red marks 201, 202, one of which is visible through an aperture 205 in disc DIII and a window 206 to indicate whether the chosen answer is correct or not. In addition a numeral 203 on disc DI is visible through window 204 and indicates the correct answer. Disc DIV is rotated to display a numeral 207 in window 206 corresponding to the correct answer whereby apertures 208 in the disc DIV uncover one of the letters A, B, C, D on the reverse side of disc DIII in the window 209. The letters B, C, D indicate that the chosen answer is progressively remote from the correct answer. A separate chart gives the marks scored by the letters A, B, C, D in each test denoted by the mark 106. The numerical and/or alphabetical markings may be replaced by geometrical or picture symbols or by braille. |
