Abstract An individual answerer answering time interval recording system for a group response device utilized, for instance, in a teaching machine for a large number of pupils, wherein the time interval from the instant a question is given to a number of pupils to the instant a selected percentage of the pupils answer the question is measured, timing pulses based on the said time interval and having a recurrence period in proportion thereto are produced and are counted successively, and each time a new answer occurs, the counted number of the said pulses is stored in a memory zone of a buffer memory for said answerer. Thus, the system records the answer time of each pupil in terms of the percentile group of its occurrence, rather than in terms of fixed units of time, e.g. pupil A answered question 1 within the time of the first 5% of all answers, student B answered the question within the time of the last 5% of all answers, etc.
A teaching system having a plurality of pupil stations, each station having means for providing an answer signal indicating the answer of the pupil to a question posed to the plurality of pupils, said system further having means for determining which answer signals represent correct answers and which represent wrOng answers, and comprising: means for determining a selected percentage of the pupil stations providing a defined answer signal; means for determining the duration of the time interval from the posing of a question to the pupils until a selected percentage of the pupil stations have provided a defined answer signal; means for generating a succession of time scale signals at a rate corresponding to the duration of said time interval; means for counting the number of said time scale signals from a time corresponding to the posing of the question; and means for storing, for each pupil station, an answer time signal representing the number counted by the counting means at a time corresponding to the time the pupil station provides a correct answer signal, thereby providing an indication of the time each pupil has taken to answer the question as related to the time it has taken to receive answers from a selected percentage of the pupils.
Claim 2
Dependent Claim
208 words
A teaching system having a plurality of pupil stations, each station having means for providing an answer signal indicating the answer of the pupil to a question posed to the plurality of pupils, said system further having means for determining which answer signals represent correct answers and which represent wrOng answers, and comprising: means for determining a selected percentage of the pupil stations providing a defined answer signal; means for determining the duration of the time interval from the posing of a question to the pupils until a selected percentage of the pupil stations have provided a defined answer signal; means for generating a succession of time scale signals at a rate corresponding to the duration of said time interval; means for counting the number of said time scale signals from a time corresponding to the posing of the question; and means for storing, for each pupil station, an answer time signal representing the number counted by the counting means at a time corresponding to the time the pupil station provides a correct answer signal, thereby providing an indication of the time each pupil has taken to answer the question as related to the time it has taken to receive answers from a selected percentage of the pupils.
Claim 3
Dependent Claim
34 words
A teaching system as in claim 1 including means for deleting the stored answer time signal for a pupil station which provides a wrong answer signal subsequent to having provided a correct answer signal.
Claim 4
Dependent Claim
80 words
A teaching system as in claim 1 wherein the counting means provides as an output a multibit number representing its contents and wherein the storing means comprises a buffer register for each bit of the counting means output, each register having a bit position corresponding to each pupil, the multibit number at the output of the counting means being stored in the bit positions of said buffer registers corresponding to the pupil station which has provided a correct answer signal.
Claim 5
Dependent Claim
79 words
A teaching system as in claim 3 including a correct answer register having a bit position corresponding to each pupil station, the contents of each bit position being changed from one binary state to another when the corresponding pupil station provides a correct answer signal, the storing of the counter means output in the corresponding bit positions of the buffer registers occurring at the time of changing the contents of the corresponding bit position in the correct answer register.