SU714466A1 - Pupil examining device - Google Patents

Description

The invention relates to teaching aids, in particular, devices for monitoring students' knowledge, and can be used in various educational institutions. A device for controlling the knowledge of students is known, comprising a keyboard, a switching unit, a block for fixing correct answers, a block of interchangeable programs, a pulse number counter, an evaluation unit, an anti-selection block for answers to the display unit 1. However, this device has a limited accuracy of knowledge control, since in evaluating the answers, the time spent by the student is not taken into account and the answer is considered. The closest in technical terms to the proposed invention is a device for monitoring students' knowledge, comprising serially connected response input unit, plug-in program block, commutator, first counter, evaluation generator and display unit connected via the lock node to the response input unit and directly to the fixing unit of correct answers, which is connected to the counter (L) and switch 2 |. This device also has limited accuracy due to the lack of time accounting in the control of knowledge. The purpose of the invention is to improve the accuracy of knowledge control by creating conditions for taking into account the time spent thinking about a response. This goal is achieved by the fact that the device contains a time stamp generator connected in series, a control time change block and a second counter connected to the display unit and the estimator, the control time change block is connected to the switch and the shift program block. The entered blocks allow you to indicate in the display unit how much time the trainee devotes to thinking about the answer specifically for each question. Moreover, depending on the degree of difficulty of the question, the permissible thinking time is set differently. Its value is determined by the teacher in advance when preparing tickets, and in accordance with this, replacement programs are prepared. In addition, it defines the permissible; thinking time for the answer, the pre-muncher can take into account the loss of time to search for the necessary keys, starting from the structure of the answer and the average statistical data on the search time for the desired key from among those having. .

.These. RC blocks allow the training to control the expiration of the thinking time and the increment of the penalty time, the time spent by the students on thinking over the permissible value. The penalty time is entered into the evaluation unit and taken into account when exposing it.

The starting point of the reference time before answering the first question is established either by the teacher’s initiative through the switching unit or automatically by the switching unit after the plug-in program is installed in the plug-in program block. The starting times of the control time before answering the second and subsequent questions are set automatically by the switching unit whenever the program for answering the second to the next questions is connected. ; The drawing shows a diagram of the device. It includes the response input block 1, the plug-in program block 2, the switch 3, the first counter 4 (pulses), the estimator 5, the blocking block b from selecting answers, the fixing block for correct answers 7, the display block 8, the tag generator time 9, block change time counter; l 0 and the second counter I.

The keyboard of an I block can have an arbitrary number of keys, which can be indicated by different signs, depending on the course being studied. Each key of block 1 is associated with block 2 of shift programs. This block lays down the program of responses to a specific series of tickets. When programming, the contacts connected to KjiaBHmaM are connected to the defined inputs of the plug-in program block. Each output of this block is connected to the corresponding contact of switch 3. Before the start of the response, switch 3 takes up its initial position and connects a program to the 4-pulse counter. answer to the first question of the ticket, since the sliding contacts of the switch 3 are the inputs of the counter 4. Pulse counter 4 is connected to the driver 5, which forms an estimate depending on the correctness of the answer to individual questions of the ticket and issues it to the display unit 8.

Node 6, designed to monitor the correctness of the answer, is associated with the keyboard unit 1 and the display unit 8, Block 7 in the display unit 8 information about which ticket questions have been answered correctly. Op nTVjrORWFrrKKoMmutator 3 and counter 4 pulses. : ;; Switch 3 and block 2 plug-in programs provide additional functions.

Switch 3 at the time of connecting the answer program to. The next billet output sends a pulse to the corresponding output, which is fed to the block of shift programs 2. Depending on the program, this pulse passes to one of the inputs of block 10, which controls the time counter P, and records one or another number to the counter 11. This number corresponds to the time interval that is devoted to thinking about the answer to this question. Counter state 11. in a convenient form for the learner, is displayed on block 8, which allows the learner to determine S as the starting point of the control time, as well as the time allotted to think about the answer on this issue.

The number of outputs of the switch 3 under consideration (and the number of the corresponding inputs of block 10) is determined by the number of questions of difficulty. Each gradation corresponds to a certain initial number, recorded in the counter 11 of the time ..,. ,

The time counter modes are not controlled by auxiliary pulses from the output of switch 3 to block 10, where they are arranged in time and are shaped in shape and amplitude, and at a distance of $ per sec: time counter 1.

Time counter 11 has the following ® modes:

- record of the initial number, the numerical value of the time interval allotted for considering the answer;

- subtraction, when the state of the counter S decreases by -unit with the arrival of each pulse from the time stamp generator 9;

- CLOSE, when the pulses of the generator of timestamp 9 are summed by the counter 11; - reading the readings of the counter 11 into the evaluation forming unit 5. As the readings of the time counter 11 are output to the display unit 8 continuously in the process of operation, this is. gives the learner the ability to control:

a) In the recording mode of the initial state - the moment of issue of the question for the answer

and the time allotted for considering the answer;

b) in subtraction mode - expiration of time, thinking;

c) in the mode of addition - increment

penalty time.

The time for considering the answer is indicated with a plus sign on the display unit, the penalty time with a minus sign.

The intermediate states of the counter 1 (initial, zero, etc.) are also set by the unit for changing the learning time 10.

five

Thus, the proposed technical solution allows to increase the accuracy of knowledge control by taking into account time parameters in the assessment.

Claims (2)

1. Authors certificate of the USSR. No. 402902, cl. G 09 B 7/00, 1972. 2. USSR author's certificate №469131, cl. G 09 B 7/02, 1974 (prototype).