RU136216U1 - DEVICE FOR TESTING TRAINERS - Google Patents

Abstract

A device for testing students containing a rectangular matrix of m × (n + 1) cells with training information, a block of n switches, a block of m elements n! permutations of cells with training information, a random n number generator on m outputs, an m × n encoder, an evaluation unit and a presentation unit (m-1) of ratings, m random n number generator outputs are connected to the corresponding m inputs of a block of m elements n! permutations of cells with training information, each of the m columns of a rectangular matrix contains one upper fixed (n + 1) -th cell with the name of the educational topic of the column and n lower managed movable cells with the ability n! times to rearrange them among themselves in each column of a rectangular matrix automatically using the block n! permutations of cells with training information, control inputs of cells with training information of each column of a rectangular matrix are connected to the corresponding n outputs of each of the m elements of block n! permutations of cells with training information, outputs of cells with training information are connected through a block n of switches and a grading unit to the inputs of a block presenting (m-1) grades, the control inputs of each of the block n of switches are connected via an mCHn encoder with the corresponding m outputs of a random n number generator, characterized in that it contains (m-1) I don’t know answer input elements installed in each column, except for the first, rectangular matrix of cells with training information, the outputs (m-1) of I don’t know answer input elements are connected to additional the inputs of the evaluation unit for a weighted increase in the final grade displayed on the indicators of the presentation unit (m-1) of the ratings.

Description

The utility model relates to the field of information technology used in the educational process as technical training tools, in particular, when testing students with the subsequent determination of their rating.

To increase the efficiency and objectivity of assessing knowledge in the educational process, testing is widely used, in which the student in the presence of the teacher selects the correct answer from several suggested answers, among which there are correct and several incorrect answers. To reduce the probability of guessing the correct answer, the student is presented with a larger amount of knowingly false (incorrect) educational information. Since for the majority of trainees all the presented answers, both right and wrong, are equally probable, after such testing the trainees worsen their residual knowledge.

A device for presenting information during training, comprising a block of n commutators and a rectangular matrix of m × (n + 1) cells with educational information, as well as remote controls for the teacher and input answers [1]. By changing the tone of the highlighting of cells with educational information, when entering answers, the student is presented with only that educational information that does not contain deliberately false answers. From this educational information, the test taker builds a chain of m answers to one of n questions asked by the teacher. The inclusion in this chain of answers to other questions that the student was not asked is considered a testing error. Such presentation of educational information expands the didactic capabilities of the selective testing method and protects it from didactic errors, since the student is not presented with knowingly false answers, the amount of information about which exceeds the amount of correct information. Therefore, such testing can be used not only in the control of knowledge, but also in training weakly and medium-trained trainees, for whom all answers are equally probable.

A disadvantage of the known device is that the relative position of the presented educational material on the coordinate plane of a rectangular matrix of cells with educational information can serve as a hint in choosing a chain of correct answers, which reduces the objectivity of testing. In addition, subjective errors in calculating the total result are possible when visually counting various tones of highlighting the cells of educational information presented.

Closest to the proposed known technical solution is a device for protecting the information presented during training from didactic errors, containing a rectangular matrix of m × (n + 1) cells with training information, a block of n switches, a block of m elements n! permutations of cells with training information, a random n number generator on m outputs, an m × n encoder, an evaluation unit and a presentation unit (m-1) of ratings, m random n number generator outputs are connected to the corresponding m inputs of a block of m elements n! permutations of cells with training information, each of the m columns of a rectangular matrix contains one upper fixed (n + 1) -th cell with the name of the educational topic of the column and n lower managed movable cells with the ability n! times to rearrange them among themselves in each column of a rectangular matrix automatically using the block n! permutations of cells with training information, control inputs of cells with training information of each column of a rectangular matrix are connected to the corresponding n outputs of each of the m elements of block n! permutations of cells with training information, outputs of cells with training information are connected through a block n of switches and an evaluation unit to the inputs of a block presenting (m-1) grades, the control inputs of each of the block n of switches are connected via an m × n encoder with the corresponding m outputs of a random n generator numbers [2]. Changing the mutual location of the cells with training information in each column of the rectangular matrix can significantly increase the number of test situations on the same topic of the lesson and thereby increase the objectivity of testing students, which is important when rating students.

The disadvantage of the prototype is that the technical ability to choose answers does not exclude the student from provoking the guessing answer, especially in the case when he cannot accurately determine the correct answer, which reduces the reliability of testing, disorientates the teacher to choose training topics for repeated studies and does not fosters feelings of sincerity among students.

The purpose of the utility model (technical result) is to increase the objectivity of evaluating test results using technical training tools by enabling the learner to avoid guessing the answer, for example, by answering “I don’t know” to some test questions whose contents are rearranged according to a pseudo-random law.

The essence of the utility model is that, in addition to the well-known and general distinguishing features, namely: a rectangular matrix of m × (n + 1) cells with training information, a block of n switches, a block of m elements n! permutations of cells with training information, a random n number generator for m outputs, an m × n encoder, an evaluation unit and a presentation unit (m-1) of ratings, m random n number generator outputs are connected to the corresponding m inputs of a block of m elements n! permutations of cells with training information, each of the m columns of a rectangular matrix contains one upper fixed (n + 1) -th cell with the name of the educational topic of the column and n lower managed movable cells with the ability n! times to rearrange them among themselves in each column of a rectangular matrix automatically using the block n! permutations of cells with training information, control inputs of cells with training information of each column of a rectangular matrix are connected to the corresponding n outputs of each of the m elements of block n! permutations of cells with training information, outputs of cells with training information are connected through a block n of switches and an evaluation unit to the inputs of a block presenting (m-1) grades, the control inputs of each of the block n of switches are connected via an m × n encoder with the corresponding m outputs of a random n generator numbers, the proposed device for testing students contains (m-1) input elements for the answer "I don’t know", installed in each column, except for the first, rectangular matrix of cells with training information, the outputs (m-1) of the input elements for the answer "Do not ayu "are connected to additional inputs of the evaluation unit for the weighted increase final assessment on indicators presentation unit (m-1) ratings.

The novelty of the utility model is that the device for testing students contains (m-1) I don’t know answer input elements installed in each column, except for the first, rectangular matrix of cells with educational information, outputs (m-1) of answer input elements “I don’t know” are connected to additional inputs of the assessment unit for a weighted increase in the final grade displayed on the indicators of the presentation unit (m-1), which provides an increase in the objectivity of evaluating the test results.

Functional diagram of a device for testing students is shown in the drawing, where it is indicated:

- a rectangular matrix of size m × (n + 1) cells with training information;

- block m elements n! permutations of cells with educational information;

- generator of random n numbers on m outputs;

- m × n encoder;

- block n switches;

- assessment unit;

- block presenting (m-1) ratings;

- input elements of the answer "I do not know."

The drawing shows that in the initial state (static) the control inputs of columns 1,1, 1.2, ..., 1. m of a rectangular matrix of 1 cells with training information are connected through a block of 2 m elements n! permutations of cells to m outputs of a generator 3 of random n numbers, the outputs of which are connected through an encoder 4 to the control inputs of blocks 5 of the switches. The outputs of the cells with the training information of the rectangular matrix 1 are connected through switching units 5 and grading 6 with the inputs of the unit 7 presenting (m-1) grades. The outputs of the elements 8 input response "I do not know" are connected to additional inputs of the evaluation unit.

The proposed device operates as follows.

On the fixed (upper) cells of all columns 1.1, 1.2, ..., 1.m of a rectangular matrix 1 with cells of educational information, the question (section) of the topic being studied is indicated. In the first column 1.1 of the rectangular matrix 1 in all cells except the upper one, possible plausible versions of the tasks that the teacher appoints are given. Rearranged cells 1.1, 1.2, ..., 1.n inside each column 1.1, 1.2, ..., 1.m of rectangular matrix 1 have the technical ability to interchange (rearrange) their presented training information within their own column. Such a permutation of cells with training information in each column of a rectangular matrix 1 is performed automatically in advance using elements 2.1, 2.2, ..., 2.m of a block of 2 elements of permutations of cells n! times with training information or manually by the teacher.

The student selects one or more cells with the correct answers in each column of the rectangular matrix 1. The output signals of these selected cells are fed to the inputs of the corresponding switches of block n of switches 5 for subsequent automatic evaluation of the test result.

Rearranging the cells of educational information among themselves is didactically necessary to ensure a large number of test situations, each of which differs from each other by at least the location of one cell with educational information. For example, with m = 4 and n = 3, we have 4! · 3! = 144 test instances (test situations) that differ from each other. Moreover, the tests are compiled on one, common for all trainees, studied educational topic, presented in m sections on n questions in each section. In such a control and training test, the presented educational information is protected from didactic errors and provides high objectivity of testing.

Rearrangement of cells with training information in each column of a rectangular matrix 1 using block 2 permutations of cells is carried out according to a random (uniform) law, which forms a generator of 3 random n numbers on m outputs. The outputs of this generator of 3 random n numbers control the operation of the permutation elements of the block 2 of the controlled cells with training information.

After the generator of 3 random numbers and block 2 permutations of cells with training information complete their work, the learner, using the information presented to him that does not contain deliberately false answers for all m columns of matrix 1 in n variants of each column, makes up a chain of cells 1 s educational information that corresponds to only one single variant of n that was asked by the teacher. The selected answer for another version of the task, which the teacher did not ask, is considered incorrect, since it does not correspond to the question asked in the first column of the rectangular matrix 1.

Since the student analyzes the information presented to him, in which there are no deliberately false answers for all m sections (columns) and immediately in all n of its variants, he does not worsen his residual knowledge on this educational topic of testing, even if all n proposed the answers are equally probable for him and he will make a mistake in the correct choice of the chain of answers. Moreover, knowing the answers to other questions, the student can, by eliminating incorrect answers, correctly select the answer to the question posed by the teacher, which expands the didactic capabilities of this testing method.

The automatic estimation of the number of errors is performed by the evaluation unit 6 known in the prototype. If the student indicated all (m-1) cells with the correct answers in each column of the square matrix of 1 cells with training information, then all the elements of coincidence will be included in the evaluation unit 6 And, that it is displayed at the outputs of block 7 of the presentation (m-1) of estimates by the maximum score of a successful response. For each mistake made in the selection of a cell from a rectangular matrix of 1 cells with training information, the corresponding logical AND match unit 6 is not included and the final test score is automatically reduced in proportion to the number of errors made.

To avoid provoking the student to guess the answer, especially in the case when he cannot accurately determine the correct answer, the proposed device provides the technical ability to answer “I don’t know” using elements 8.1, 8.2, ... 8. (m-1), which are set in each column, except for the first, rectangular matrix 1. Note that guessing the answer reduces the reliability of the test, disorientes the teacher on the choice of training topics for repeated studies and does not raise a sense of sincerity among students. The motivated answer “I don’t know”, introduced using elements 8, balancedly increases the final score presented by block 7, which increases the objectivity of testing.

The industrial feasibility of the claimed utility model is justified by the fact that it uses blocks and elements known in the analogue and prototype for their intended purpose. In 2013, the applicant organization made a valid prototype of a device for testing students using paper-based training information placed in cells of a rectangular matrix 1.

The positive effect of using the utility model is that it increases by at least 15 ... 20% the objectivity of evaluating the results of control and training testing by providing the student with the technical ability to avoid guessing the answer, for example, answering “I don’t know” to some test questions, contents which are rearranged among themselves according to the pseudo-random law.

Information sources:

1. Autosvid. USSR 1672507, IPC G09B 7/00, Device for presenting information during training, author: Kochetov AS, publ. 08/23/1991, the applicant: Serpukhovskoe WWURV, (analogue).

2. Patent RU 102820 for utility model “Device for protecting information presented during training against didactic errors”, ΜΠΚ G09B 7/00, priority: 10.21.2010, authors: Baldov P.V. et al., patent holder: MOU “Institute of Engineering Physics”, (prototype).

Claims (1)

A device for testing students containing a rectangular matrix of m × (n + 1) cells with training information, a block of n switches, a block of m elements n! permutations of cells with training information, a random n number generator for m outputs, an m × n encoder, an evaluation unit and a presentation unit (m-1) of ratings, m outputs of a random n number generator are connected to the corresponding m inputs of a block of m elements n! permutations of cells with training information, each of the m columns of a rectangular matrix contains one upper fixed (n + 1) -th cell with the name of the educational topic of the column and n lower managed movable cells with the ability n! times to rearrange them among themselves in each column of a rectangular matrix automatically using the block n! permutations of cells with training information, control inputs of cells with training information of each column of a rectangular matrix are connected to the corresponding n outputs of each of the m elements of block n! permutations of cells with training information, outputs of cells with training information are connected through a block n of switches and a grading unit to the inputs of a block presenting (m-1) grades, the control inputs of each of the block n of switches are connected via an mCHn encoder with the corresponding m outputs of a random n number generator, characterized in that it contains (m-1) I don’t know answer input elements installed in each column, except for the first, rectangular matrix of cells with training information, the outputs (m-1) of I don’t know answer input elements are connected to additional the inputs of the evaluation unit for a weighted increase in the final grade displayed on the indicators of the presentation unit (m-1) of the ratings.

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