SU1624497A1 - Computerized class for education and control of knowledge of students - Google Patents

Abstract

The invention relates to automation and computing and can be used in various educational institutions in organizing the educational process. The purpose of the invention is to expand the didactic capabilities of the device. The automated class eliminates the uncertainty of the choice of the stage for which the teacher explains, and the stage is determined on the basis of the mathematical expectation and the standard deviation studied at a certain point in the stages. 1 silt

Description

The invention relates to automation and computing and can be used in various educational institutions in the organization of the educational process.

The purpose of the invention is to expand the didactic capabilities of the class by instructing the teacher on a specific stage that needs to be explained.

The benchmark for specifying the specific stage on which it is necessary to carry out an explanation are the mathematical expectation of the M x, the stages studied at the moment, as an estimate of which it is natural to offer the arithmetic average of the stages studied at the moment, and the standard deviation of the currently studied stages. stages, by the parameters of which determine the stage by which it is necessary to explain the teacher by the formula

y-

The drawing shows a block diagram of an automated class for teaching and controlling students' knowledge.

The automated class for teaching and controlling students' knowledge contains a console of students 1 and a panel of 2 teachers. The panel of 2 teachers contains a switch 3, a unit 4 for information processing and a block 5 for indication.

Switch 3 contains elements AND 6, elements OR 7, element OR 8, trigger 9, driver 10 pulses, time relay 11, elements AND 12, element AND 13, delay elements 14-20.

The information processing unit 4 comprises a counter 21, an adder 22, a code dividing unit 23, an adder 24, a power exponent 25 (squared), an adder 26, a code dividing unit 27, a root (square) extraction unit 28, an adder 29. block 30 code division, decoder 31.

Due to the fact that the multi-digit code comes from the consoles 1, elements 6 and 7 consist of several identical assembling and matching schemes, respectively (not shown).

The information processing unit 4 calculates stage X, in which

Os

Yu

fc

yu VI

We must go to the teacher to explain this using the above formula.

To calculate the expectation determined by the formula

,one

Xi

where Xi is the stage number studied by students;

n is the total number of students;

M x - the mathematical expectation of the stages being studied at the moment is used by the adder 22 and the block 23 for dividing the codes.

To calculate the standard deviation determined by the formula

° S

icX-MM) 2

using a device based on adder 24, exponentiation unit 25 (square), adder 26, block dividing unit 27, root extraction unit (square).

Device for calculating the expression

1 +

performed on the basis of the cumulative adder 29.

The computation of step X from the numerical values of M x and 1 + is performed by block 30 of code division. The sequence of operations provided by the switch 3.

The device is reset to its initial position by a time relay 11, the output of which is connected with the zeroing buses of all adders and arithmetic devices (not shown),

To eliminate the addition of additional memory blocks, the zero state of the adder 29 is the state in which a unit is written to it.

Automated class for training and knowledge control of students works as follows.

Information from the stage number (the number of studied sections) from the console 1 enters the inputs of the AND 6 elements. The second input of the AND 6 elements of the first interrogated console 1 from the generator 10 intended for sequential polling of the consoles 1 passes the enabling signal, through which the stage code passes through the elements 6 and 7 in the presence of the enable signal from the trigger 9 (the enable signal from the trigger 9 enters the adder 22 in the event that the trigger is set to the zero position) enters the adder 22. Shaper

10 supplies the enable signal to the next element 6, and a new stage is added to the adder 22, which is being studied by the second student. So for the polling cycle in

adder 22 generates the sum of the numbers of the stages studied by each student. Also during the polling cycle in the counter 21 will be recorded the number of 10 consoles 1 polled by the shaper.

At the end of the polling cycle, the generator 10 output signal is sent to block 23, the output of which forms the expectation code. Then from the output of the imaging unit 10, a signal is sent to the counting input of the trigger 9. It is set to one state, the counter 21 is reset with the same signal.

After this, a second polling cycle begins. At the same time thanks to the fact that the trigger

9 is set to one, in accumulator 22 no new accumulation of results occurs. From the element OR 8, through the elements 13 and 15, a signal is sent to the adder 24, the difference of the codes from the output of which is fed to the input of the unit 25 for squaring. The output of block 25 is connected to the adder 26. At the end of the second polling cycle, the expression 26 will be written to the adder 26

Z / x-Rx) 2

From the output of the imaging unit 10 through the element 12 and the enabling signal will be given

to block 27. The quotient from dividing the two quantities enters the square root extraction block 28. The output of block 28 yields the value of the standard deviation, which is transferred to the adder 29,

providing the addition of the standard deviation with the unit. Using the resolving signal from element 20, block 30 calculates stage X, the value of which is converted into a decimal number system using decoder 31 and will be highlighted to the teacher on the information display of display unit 5.

Since the output element 12 is connected to the input of the relay 11, the signal from the element And 12

it runs. In this case, the imaging unit 10 stops its operation for the time determined by the relay 11. This time is chosen sufficient for reading information from block 5, for example, equal to 10 s.

- After a predetermined time of 10 s has elapsed from the output of the relay 11, a pulse is applied to all adders and arithmetic devices, by means of which they zero, the driver 10 is started.

Claims (1)

Eliminating the uncertainty of the choice of the stage by which the teacher must be explained is the advantage and advantage of the invention compared to the analogue. Claims An automated class for teaching and controlling students' knowledge, containing student consoles, the outputs of which are connected to the information inputs of the switch, the first and second outputs of which are connected to the counting and installation inputs of the counter, the outputs of which are connected to the information inputs of the first groups of the first, second and third dividers codes, the third output is connected to the information inputs of the first adder and information inputs of the first group of the second adder, the fourth and fifth outputs are connected Respectively with the installation input of the first adder and the control input of the first code divider, the outputs of the first adder are connected to the information inputs of the second group of the first code divider, the sixth switch output is connected to the control input of the second adder, the outputs of which are connected to the information inputs of the raising unit which entrance is connected to the seventh exit the switch and the outputs are connected to the information inputs of the third adder, the outputs of which are connected to the information inputs of the second group of the second code divider, the control output of which is connected to the eighth output of the switch, and the outputs are connected to the information inputs of the root extractor, the control input of which is connected to switch output, the tenth output of which is connected to the control input of the third code splitter, the fourth adder and the display unit, characterized in that, in order to expand didactic capabilities of the class, a decoder is entered into it, the inputs of which are connected to the outputs of the third code divider, and the output is connected to the input of the display unit, the control inputs of the first and third adders are connected respectively to the tenth and eleventh outputs of the switch, the outputs of the first code splitter are connected to information inputs of the second group of the second adder, the outputs of the root extraction unit are connected to the information inputs of the fourth adder, the control input of which is connected to the twelfth output of the switch, and the outputs are connected to the inputs of the second groups of the third divider codes.