SU748495A2 - Pupil examining device - Google Patents

Description

(54) DEVICE FOR CONTROL OF KNOWLEDGE OF STUDENTS

one

The invention relates to technical training tools and can be used for the creation of programmed training devices in various educational institutions. It is an improvement on the basic invention of auth. St. No. 514323.

The known device for controlling the knowledge of students 1), which provides an objective control of knowledge on a set of questions, contains a response input block connected to an answer analysis block connected to a question generation block and a rating counter connected to a calculator connected to a rating recorder and comparison block connected to the questions formation block and the scores registrar, the counts of questions connected to the questions formation block and the questions comparison block.

The device allows, with a given accuracy, to assess the levels of knowledge on a controlled body by a limited number of randomly selected from a total set of questions that have the same values of mutual correlation coefficients, which numerically characterize the degree of interconnection between course questions.

The disadvantage of this device is that when assessing knowledge of training courses by means of test questions with different values of the cross-correlation coefficients, it is impossible to provide control and a given assessment accuracy, since in a random selection of controlled questions from their common set, there is always a likelihood there are no issues that are close in meaning, i.e., questions with large values of the mutual correlation coefficients in the absence of this need, which distorts the results of the control.

The purpose of the invention is to expand the didactic capabilities of the device, increasing the efficiency of its use by providing control over the mastering of training courses through questions with different values of the mutual correlation coefficients.

The proposed technical solution is based on comparing the mutual correlation coefficient r of the next 10 presented questions with the given maximum MAX minimum r, l „„ values of the correlation coefficients determined from the pedagogical practice.

The goal is achieved by the fact that the device according to ed. St. No. 514323 entered a threshold block connected to the input and output of the question generation block and to the output of the answer analysis block.

The threshold block is realized in the form of two types of questions connected in parallel to the shaping unit, which are connected in parallel, for example, via the relay contacts, threshold circuits with the number of them equal to the total number of controlled course questions.

The first type of threshold circuits is connected to an input to a question forming unit that sequentially connects a threshold circuit, for example, a diode with a maximum threshold, and an And element, connected to another output of the response analysis unit, and output to the corresponding relay of the unit formation of questions, and a page drum. On which cards with questions are placed. The second type of threshold circuit is a threshold circuit, for example, a diode with a minimum trigger threshold, connected to the corresponding page drum relay. Getting the correct answer from the signal response analysis block using the relay contacts to connect the common types of PE circuits in parallel, and at the output of the elements AND triggered threshold circuits, signals are generated that feed the windings of the corresponding relay of the question generation block, thereby producing a permanent blocking of the cards with realized 1 questions, excluding their re-presentation in the next series. When the signal of an incorrect response is received, the threshold circuits of the second type are turned off with the help of contact relays, and at the output of the elements and non-triggered threshold circuits, signals are generated that produce a temporary (not the time of presentation of the next question) block:

The proposed device is shown in the drawing. It contains a response input block 1, connected to response analysis block 2, a SoeDIN-Nejm unit with a formation unit 3 of Chipboxes and a rating counter 4 connected to calculator 5 connected to a registrar of regimens 6, a question counter 7 connected to unit 3 forming questions and to the unit 8 comparisons of questions connected with block 3, calculator 5 and score recorder 6, threshold block 9 connected by inputs with block 2 of anaglise answers and block 3 of forming questions, and output

with block 3 input.

The device for controlling the knowledge of students works as follows.

 When the device is started up, the block 3 formai .ani questions, turning the page drum at random, presents one of the learning questions. At the same time, the chains of the correct answer are switched, the weights of this question, the response delay counter is started and a lock is made to prevent this issue from being repeated in the current control series. At the same time, “Bet question goes to question counter 7. In addition, from block 3, questions are formed to the corresponding inputs of diodes of threshold circuits of block 9, signals of correlation coefficients of the remaining questions of the test course relative to the set are received.

0 When dialing the correct answer code in block 1 of response analysis in block 2, the correct answer indication circuit is switched, the correct response transfer circuit is sent to the evaluation counter 4, the power supply circuit of the relay coil of block 9 connecting parallel types of threshold circuits and the output circuit the inputs of the elements of this block. At the same time, in block 9, signals are generated by which in block 3 of question formation, a constant blocking of questions with values of correlation coefficients lowering maximum values and larger minimum values is realized.

If the answer is incorrect, from block 2 of the analysis for responses to the counting counter 4, you transmit zero information on the relay and block 9 on the coil of the relay of block 9, resulting in this. J thresholds are disconnected with a multiplicity of thresholds and triggered

Signals that are in the block are batted. the formation of questions is carried out during a period of blocking questions with values lower than the maximum.

The indicator 5, taken from the score counter 4, forms the codes for the average oueliKH and the number of questions required. With a static number of questions for reliable evaluation, block 8 issues an rtyckbBofl pulse to a question formation block 3, which, when answered correctly, presents one of the questions with a small CTeneHtiP similarity, and if the answer is incorrect, one of the questions with a large degree of similarity, and the cycle repeats. When the number of questions asked provides the required accuracy of the estimate, block 8 sends signals to the recorder

grades G, where the score is displayed, generated by calculator 5, and the device is brought to its original state.

The device for controlling students' knowledge is intended to improve the quality of course control with different values of cross-correlation coefficients between course questions. From the use of the invention, the following effect can be obtained:

-increase the bandwidth of the device;

- improvement of the teacher's work efficiency;

- increase in the efficiency of use of the control device due to the solution of its didactic capabilities.

Claims (1)

Invention Formula A device for controlling students St. No. 514323, that is, in order to expand the didactic capabilities of the device, it contains a threshold unit connected to the input and output of the question forming unit and to the output of the answer analysis unit. Sources of information taken into account in the examination I. USSR Author's Certificate NS 514323, MxL G 09 B 7/02, 1975 (about the type).