SU1269177A1 - Device for checking knowledge level - Google Patents

Abstract

The invention relates to technical training. The purpose of the invention is to increase objectivity; , Evaluation of knowledge by distinguishing between correct and incorrect answers of incomplete answers. The device for knowledge control contains indication elements, a power source (PI), and coding and input nodes for responses in the form of circuits of serially connected switching elements. Each circuit by one of the outputs is connected to one of the inputs of the display element connected by another input to the first bus PI. With another output, each circuit is connected to a second UI bus. The coding nodes also contain voltage breakers, the contacts of which are connected in parallel with the contacts of the switching elements corresponding to the correct additional response elements. 1 il.

Description

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QO 11 The invention relates to electromechanical components built on teaching aids, in which the constructive selection method of answers is implemented. The purpose of the invention is to increase the objectivity of the assessment of students' knowledge by distinguishing, together with correct and incorrect incomplete answers. The drawing shows the functional diagram of the device for knowledge control. The device contains the same type of nodes 1. 1, ... ,, Incoding and input of answers, elements 2.1, ..., 2p of response indications, power supply source 3. Each encoding node 1: and input of answers contains, for example, ten button switches 4-13 in series and two voltage breakers 14 and 15. The contacts 16 of the voltage breaker 14 are connected in parallel to the contacts of one of the switches, for example, the switch 10. Similarly, the contacts 17 of the interruption of the voltage bodies 15 are connected to the contacts of the other switch, for example the switch 12. The switches 4-13 are intended both for coding and for entering answers . The design of the switches provides for the button to return to the same initial state both after switching on and after switching off 35

NII, This eliminates the student's visual definition of the state of the contacts of switches when entering answers.

As breakers, for example, multivibrators with relays in collector circuits can be used.

Display element 2 is connected in series with switches 4-13.

The operation of the device consists of two stages:

 preparing the device, including setting the initial state and encoding the responses;

control of knowledge using the device by entering responses to students.

Power is supplied to the device to set the initial state. All switches 4-13 are set to On. The final control of the initial state is carried out by burning the display element 2.

the correct mandatory and correct additional response elements are set to Off. Next, parallel to the contacts of the switches corresponding to the correct additional elements of the answer, connect the contacts of the circuit breakers.

The circuit is de-energized by the corresponding switch from the teacher’s console and is ready to work (the response is entered by the student).

When entering the answer, the task of the student reduces to pressing the buttons corresponding to the numbers of the correct, in his opinion, elements of the answer.

To control the correctness and evaluation of the response from the console, the teacher is fed to the circuit. Breakers 14 and 15 voltages start working.

If the trainee gave a correct and complete answer, the voltage interrupters do not affect its operation, because the appearance of the buttons cannot determine the state of their contacts, they use a portable indicator lamp to speed up the installation of the initial state, and the second - alternately to the output terminals of the switches, starting from the closest to the power source. The burning of the portable indicator lamp indicates the on state of the corresponding switches and groups of switches, for example, first 13, then 13 and 12, then 13, 12, 11, etc. When encoding the answer, it should be borne in mind that all the elements of the answer and the corresponding switches are divided into three groups: correct mandatory, the totality of which is necessary and sufficient for a positive (satisfactory) assessment of the answer to the question; correct complementary, more precise and deepening response, composed of correct mandatory elements; incorrect elements, each of which, if it is used, the learner for an answer indicates a lack of understanding of the substance of the question and is sufficient for an unsatisfactory assessment of the answer to the question as a whole. In the process of encoding the answer switches that match

Claims (1)

Claim A device for monitoring knowledge, containing indicators, a power source, and nodes for encoding and inputting responses in the form of circuits of series-connected switching elements, with each circuit being connected to one of the inputs of an indication element connected by another input to the first bus of the power source and to another output each circuit is connected to the second bus of the power source, distinguishing it with the fact that, in order to increase the objectivity of knowledge assessment by distinguishing along with the right and wrong answers lnyh responses, coding units administered voltage circuit breakers, the contacts of which are connected in parallel contacts the switching elements, additional elements corresponding to the best answers.