CN105118348A - Question selecting method based on knowledge point system - Google Patents
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Abstract
The invention discloses a subject question selecting method based on a knowledge point system. The method provided by the invention comprises the step that 1, a test time TT is determined according to a knowledge point range; 2, the amount of questions is calculated, and a current reference level is generated according to the knowledge point range; 3, average question solving amount AOG and total question solving amount TQN are confirmed according to the current reference level; 4, the average number of selected questions of each knowledge point is confirmed according to the total question amount; 5, the degree of difficulty of each question is determined; 6, sequential question selecting is carried out on question types according to each knowledge point according to the sequence of multiple choice questions, gap filling, multiple choice questions and subjective questions; and 7, the accumulation time for completing test paper is calculated, and if the accumulation time is less than or equal to the test time TT in the step 1, questions are randomly selected from a database to generate test paper. According to the invention, the current clearance level of tested knowledge points are intelligently changed; students are helped to carry out targeted testing and training; and learning goals are enhanced step by step.
Description
Technical field
The invention belongs to online education technical field, particularly relate to the subject Topic Selection of a kind of knowledge based point system.
Background technology
It is the most thorny again while that K12 online education field being considered to the most tempting usually.With regard to current present situation, prevail in K12 online education market and the countless companies of drawing pursue, and then become the popular domain of online education, after especially ape exam pool, ladder net, together work network, happy, scholar-tyrant, one who exercises autocratic control in academic and educational circles Jun Deng enterprise enter middle and primary schools field, attract pursuing of countless capital.
March the force in this field of K12 online education from different backgrounds: have picture to learn traditional transition of personally instructing mechanism such as Broad education; There is the online education enterprise of emerging investment, as ladder net, ape exam pool; There is the enterprise of Publishing Industry background, as will letter education etc.; Large-scale portal website also releases oneself project one after another, as Netease's cloud classroom.
In addition, many internet giants also march online education one after another.Baidu issues online education product " Baidu's education ", is proposed again subsequently " operation side " based on UGC pattern; And then Ali also externally issues after interior survey complete " Taobao classmate "; Tengxun is proposed professional online education platform Tengxun classroom, helps Xian Xia educational institution to enter, explores online education new model.
According to statistics, there is hundreds of family in the enterprise of the domestic K12 of being engaged in online education, and wherein the overwhelming majority is the new spectra set up for nearly 1 year, and K12 online education is fiery as can be seen here.
Along with the development trend of online education, traditional education training organization, constantly constructing oneself mobile Internet education moat, while training, is held by PC under firm line, the boundary of opening that a new round is launched in mobile terminal wards off native offensive, with the combination under line on realization teaching line.
The brand benefit that e degree education network under good future education gives up more than ten years is saved bit by bit and is renamed as " head of a family side ", transition on line, mobile client education exchange of information platform, original web site contents is carried out combing, more specify that the service-user colony of mobile product is " head of a family ".
Learn Broad education and also issued its first online education product in 2014---" e large " intelligent tutoring system, starts line and to reach the standard grade the lower O2O teaching pattern integrating complementation.After several months, learn Broad education upgrading " e is large ", newly-increased panel computer application, the all fronts realizing PC, mobile phone and Pad cover, from 1,1 is extended to many team teaching modes to 1 teaching, add the elements such as excitation, entertaining, social activity, and support that off-line uses at panel computer end.
Understanding the important means of a student to knowledge point grasp situation and its results of learning of inspection is homework and exercise, and this is also the most important aspect of the head of a family, student, teacher's care.Start with from the operation of student and exercise, become the breakthrough point that a lot of online education company aims at, still more, start with in this link, compared to other online education product, it more easily saves bit by bit a large amount of user data at short notice.
During the conventional teaching teacher subject of a lecture, which problem outtalks less, the arrangement of teaching distributes the judgement seeing teacher oneself more, and to the datumization management of student performance and analytical work do very few.In the mobile interchange epoch, based on large data to the analysis of Students ' Learning situation, intelligently pushing, the communication meeting of the head of a family, teacher, student three becomes very convenient.
How to allow student be inscribed by system, reflect the grasp situation of its knowledge point and the study habit of student and state, set up wrong exam pool for the exercise question that error frequency is high, the deficiency of the inspection making student convenient oneself simultaneously.We need one to lead figure and knowledge point system towards perfect subject knowledge for this reason, are aided with the measurement system of science, provide a kind of Compatible teaching means of teaching students in accordance with their aptitude.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, the subject Topic Selection of a kind of knowledge based point system is provided.
The technical solution adopted for the present invention to solve the technical problems comprises the following steps:
Step 1. determines test duration TT according to knowledge point scope, TT=5*ng;
Step 2. calculates volume, according to knowledge point scope, generates current base grade, specific as follows:
If score value corresponding to A, B, C, D grade is respectively 1,2,3,4; Then the reference grade TG of knowledge point scope solves as follows
TG＝(1×na+2×nb+3×nc+4×nd)/(na+nb+nc+nd)
Wherein, the knowledge point number of na to be grade be A, the knowledge point number of nb to be grade be B, the knowledge point number of nc to be grade be C, the knowledge point number of nd to be grade be D; Reference grade TG is rounded, then by corresponding for the TG after rounding grade [A, B, C, D], thus determines current base grade;
Step 3. confirms on average to separate volume AOG and total volume TQN according to current base grade TG;
Step 4. confirms the average selected topic number of each knowledge point according to total volume;
Step 5. selects item difficulty, according to the examination question number of each knowledge point that step 3 draws, determines the complexity of per pass examination question;
Step 6. multiple-choice question type, in database topic type comprise multiple-choice question, fill a vacancy topic and subjective item, examination question type corresponding to each knowledge point is selected a topic successively according to the order of multiple-choice question, topic of filling a vacancy, multiple-choice question, subjective item; Until the examination question number of this knowledge point has been selected;
The problem time of the knowledge point scope that step 7. confirms according to step 1-6, selected topic difficulty, selected topic quantity, selected topic type and per pass examination question, calculate the cumulative time of this test volume, if the cumulative time is less than or equal to the test duration TT in step 1, then from database, generate test volume after random choose examination question.
Determine test duration TT according to knowledge point scope, TT=5*ng described in step 1, specifically determine as follows:
If knowledge point number is greater than 8, then ng=5;
If knowledge point number is between 5-7, then ng=4;
If knowledge point number is between 2-4, then ng=3;
If knowledge point number is 1, then ng=2.
Confirm on average to separate volume AOG and total volume TQN according to current base grade TG described in step 3, specific as follows:
3-1. is by pressing subject and the confirmation of A, B, C, D grade to AOG is as follows:
If subject is primary school mathematics, then the AOG that A, B, C, D tetra-grades are corresponding is respectively 5,4,4,3;
If subject is little English learning, then the AOG that A, B, C Three Estate is corresponding is respectively 5,3,2;
If subject is Junior Mathematics, then the AOG that A, B, C, D tetra-grades are corresponding is respectively 4,3,3,2;
If subject is JEFC, then the AOG that A, B, C, D tetra-grades are corresponding is respectively 5,4,3,2;
If subject is junior middle school's science, then the AOG that A, B, C, D tetra-grades are corresponding is respectively 5,4,2,1;
3-2. being always calculated as of selected topic amount TQN: TQN=AOG × ng;
Described AOG refers to the average solution volume of 5 minutes.
The average selected topic number confirming each knowledge point according to total volume described in step 4, concrete confirmation rule is as follows:
If rule 1. total volumes be more than or equal to knowledge point number, then total volume and knowledge point number are divided by, obtain a business S and remainder Y, using business S as each knowledge point basis select a topic number, and then from the number of knowledge point a random selecting Y exercise question;
If rule 2. total volumes are less than knowledge point number, then adopt " equiblibrium mass distribution " principle, concrete:
1. chapters and sections homeostatic principle take chapters and sections as the benchmark that examination question distributes;
2. the examination question corresponding to volume random selecting knowledge point.
Selection item difficulty described in step 5, specific as follows:
According to the examination question number of each knowledge point that step 3 draws, the complexity of per pass examination question is confirmed as follows:
If the examination question number of this knowledge point is 4 topics, then according to the present level determination difficulty of this knowledge point, if present level is A, then complexity is A two topic, and B two inscribes; If present level is B, then complexity is A mono-topic, and B two inscribes, and C mono-inscribes; If present level is C, then complexity is B mono-topic, and C two inscribes, and D mono-inscribes; If present level is D, then complexity is C two topic, and D two inscribes;
If the examination question number of this knowledge point is 3 topics, then according to the present level determination difficulty of this knowledge point, if present level is A, then complexity is A two topic, and B mono-inscribes; If present level is B, then complexity is B two topic, and C mono-inscribes; If present level is C, then complexity is C two topic, and D mono-inscribes; If present level is D, then complexity is C mono-topic, and D two inscribes;
If the examination question number of this knowledge point is 2 topics, then select two topics according to the present level of this knowledge point;
If the examination question number of this knowledge point is 1 topic, then select a topic according to the present level of this knowledge point;
If the examination question number of this knowledge point is 6 or 9 topics, then the situation being 3 with reference to examination question number amplifies volume multiple;
If the examination question number of this knowledge point is 8 or 12 topics, then the situation with reference to examination question number 4 amplifies volume multiple.
If the cumulative time in step 7 exceeds the test duration TT in step 1, then revise as follows:
Scheme 1: maintain volume constant, the amendment test duration; Then test volume is generated;
Scheme 2: extract part examination question, concrete last one examination question once extracting each knowledge point, until the cumulative time after extracting is less than or equal to the test duration TT in step 1, then generates test volume.
Beneficial effect of the present invention is as follows:
The present invention is directed to K12 student group feature, educated a set of intelligent detecting and evaluating algorithms completely newly of independent research by clearance.Student is in the process of this assessment method of application, by selecting the subject knowledge point chapters and sections combination needing test and appraisal, system intelligence pushes the test exercise question collection of corresponding grade of difficulty, student is after completing exercise question answer, system is by auto judge process, map rapidly and accurately survey the Grasping level of knowledge point, and transition intelligently survey the current clearance grade of knowledge point, for grade foundation is accurately set up dynamically in follow-up study, boosting student constantly tests targetedly by the method and contacts, and promotes learning objective by easy stages.
The learning and mastering situation of the present invention to student knowledge point forms an objective rational metewand, provides foundation accurately, General Promotion learning efficiency for what student " should practice ".
By testing and assessing to the systematicness of each subject knowledge point, adopting system auto judge system, according to test result, forming the objective evaluation of learning state, make student can obtain knowledge point contents study benefited a great deal, reach the specialized training target of shooting the arrow at the target.This be under a kind of classroom line of novelty with the fusion teaching pattern on clearance line.Wherein, line upper part relies on the exam pool content of high-quality, by checking of formula to support adaptive religion, makes line upper part become the important option of learning aid.
Embodiment
Below in conjunction with embodiment, the invention will be further described.
The technical solution adopted for the present invention to solve the technical problems comprises the following steps:
Step 1. determines test duration TT according to knowledge point scope, TT=5*ng, specifically determines as follows:
If knowledge point number is greater than 8, then ng=5;
If knowledge point number is between 5-7, then ng=4;
If knowledge point number is between 2-4, then ng=3;
If knowledge point number is 1, then ng=2;
Such as: select 6 knowledge points, then the test duration is defined as 20 minutes, then the test duration is defined as 25 minutes to select 9 knowledge points, citing below with 6 knowledge points for benchmark
Step 2. calculates volume
2-1., according to knowledge point scope, generates current base grade, specific as follows:
If score value corresponding to A, B, C, D grade is respectively 1,2,3,4; Then the reference grade TG of knowledge point scope solves as follows
TG＝(1×na+2×nb+3×nc+4×nd)/(na+nb+nc+nd)
Wherein, the knowledge point number of na to be grade be A, the knowledge point number of nb to be grade be B, the knowledge point number of nc to be grade be C, the knowledge point number of nd to be grade be D; Reference grade TG is rounded, then by corresponding for the TG after rounding grade [A, B, C, D], thus determines current base grade;
Such as, have 2 knowledge points to be what do not test in these 6 knowledge points, then the grade being defaulted as these two knowledge points is A, and the grade of all the other four knowledge points is B, B, C, A; Then the present level of these six knowledge points is respectively: A, A, B, B, C, A; TG=(1 × 3+2 × 2+3 × 1)/6, its reference grade TG is A;
Step 3. confirms AOG and total volume TQN (TotalQuestionNumber) according to current base grade TG;
3-1. is by pressing subject and the confirmation of A, B, C, D grade to AOG is as follows:
If subject is primary school mathematics, then the AOG that A, B, C, D tetra-grades are corresponding is respectively 5,4,4,3;
If subject is little English learning, then the AOG that A, B, C Three Estate is corresponding is respectively 5,3,2;
If subject is Junior Mathematics, then the AOG that A, B, C, D tetra-grades are corresponding is respectively 4,3,3,2;
If subject is JEFC, then the AOG that A, B, C, D tetra-grades are corresponding is respectively 5,4,3,2;
If subject is junior middle school's science, then the AOG that A, B, C, D tetra-grades are corresponding is respectively 5,4,2,1;
Such as: with 6 knowledge points, reference grade TG is the primary school mathematics of A is example, then corresponding AOG is 5;
3-2. being always calculated as of selected topic amount TQN: TQN=AOG × ng;
Described AOG refers to the average solution volume of 5 minutes;
Such as: total selected topic amount TQN=5*4=20
Step 4, confirm the average selected topic number of each knowledge point according to total volume, specifically confirm that rule is as follows:
If rule 1. total volumes be more than or equal to knowledge point number, then total volume and knowledge point number are divided by, obtain a business S and remainder Y, using business S as each knowledge point basis select a topic number, and then from the number of knowledge point a random selecting Y exercise question;
Such as: 20 equal more than 32 divided by 6, then each knowledge point basis the selected topic number be 3, and then from the number of knowledge point random selecting 2 exercise questions;
If rule 2. total volumes are less than knowledge point number, then adopt " equiblibrium mass distribution " principle, concrete:
1. chapters and sections homeostatic principle take chapters and sections as the benchmark that examination question distributes;
2. the examination question corresponding to volume random selecting knowledge point;
Step 5. selects item difficulty
According to the examination question number of each knowledge point that step 3 draws, determine the complexity of per pass examination question, specific as follows:
If the examination question number of this knowledge point is 4 topics, then according to the present level determination difficulty of this knowledge point, if present level is A, then complexity is A two topic, and B two inscribes; If present level is B, then complexity is A mono-topic, and B two inscribes, and C mono-inscribes; If present level is C, then complexity is B mono-topic, and C two inscribes, and D mono-inscribes; If present level is D, then complexity is C two topic, and D two inscribes;
If the examination question number of this knowledge point is 3 topics, then according to the present level determination difficulty of this knowledge point, if present level is A, then complexity is A two topic, and B mono-inscribes; If present level is B, then complexity is B two topic, and C mono-inscribes; If present level is C, then complexity is C two topic, and D mono-inscribes; If present level is D, then complexity is C mono-topic, and D two inscribes;
If the examination question number of this knowledge point is 2 topics, then select two topics according to the present level of this knowledge point;
If the examination question number of this knowledge point is 1 topic, then select a topic according to the present level of this knowledge point;
If the examination question number of this knowledge point is 6 or 9 topics, then the situation being 3 with reference to examination question number amplifies volume multiple;
If the examination question number of this knowledge point is 8 or 12 topics, then the situation with reference to examination question number 4 amplifies volume multiple;
Such as: if be 3 topics or 4 topics referring to the examination question number of this knowledge point, if wherein the 3rd knowledge point of present level to be first knowledge point of A and present level be B is 4 topics, all the other are 3 topics, concrete:
First present level is the selected topic of the knowledge point of A: complexity is A two topic, and B two inscribes;
Second present level is the selected topic of the knowledge point of A: complexity is A two topic, and B mono-inscribes;
3rd present level is the selected topic of the knowledge point of B: complexity is A mono-topic, and B two inscribes, and C mono-inscribes;
4th present level is the selected topic of the knowledge point of B: complexity is B two topic, and C mono-inscribes;
5th present level is the selected topic of the knowledge point of C: complexity is C two topic, and D mono-inscribes;
6th present level is the selected topic of the knowledge point of A: complexity is A two topic, and B mono-inscribes;
Step 6, multiple-choice question type
In database topic type comprise multiple-choice question, fill a vacancy topic and subjective item, examination question type corresponding to each knowledge point is selected a topic successively according to the order of multiple-choice question, topic of filling a vacancy, multiple-choice question, subjective item; Until the examination question number of this knowledge point has been selected;
Such as: to be the selected topic of the knowledge point of A be for first present level: multiple-choice question complexity is A, topic of filling a vacancy complexity is A, multiple-choice question complexity is B, subjective item complexity is B;
Second present level is the selected topic of the knowledge point of A: multiple-choice question complexity is A, topic of filling a vacancy complexity is A, multiple-choice question complexity is B;
3rd present level is the selected topic of the knowledge point of B: multiple-choice question complexity is A, topic of filling a vacancy complexity is B, multiple-choice question complexity is B, subjective item complexity is C;
4th present level is the selected topic of the knowledge point of B: multiple-choice question complexity is B, topic of filling a vacancy complexity is B, multiple-choice question complexity is C;
5th present level is the selected topic of the knowledge point of C: multiple-choice question complexity is C, topic of filling a vacancy complexity is C, multiple-choice question complexity is D;
6th present level is the selected topic of the knowledge point of A: multiple-choice question complexity is A, topic of filling a vacancy complexity is A, multiple-choice question complexity is B.
The problem time of the knowledge point scope that step 7. confirms according to step 1-6, selected topic difficulty, selected topic quantity, selected topic type and per pass examination question, calculate the cumulative time of this test volume,
If the cumulative time is less than or equal to the test duration TT in step 1, then from database, generate test volume after random choose examination question.
If the cumulative time exceeds the test duration TT in step 1, then revise as follows:
Scheme 1: maintain volume constant, the amendment test duration; Then test volume is generated;
Scheme 2: extract part examination question, concrete last one examination question once extracting each knowledge point, until the cumulative time after extracting is less than or equal to the test duration TT in step 1, then generates test volume.
Claims (6)
1. a subject Topic Selection for knowledge based point system, is characterized in that comprising the following steps:
Step 1. determines test duration TT according to knowledge point scope, TT=5*ng;
Step 2. calculates volume, according to knowledge point scope, generates current base grade, specific as follows:
If score value corresponding to A, B, C, D grade is respectively 1,2,3,4; Then the reference grade TG of knowledge point scope solves as follows
TG＝(1×na+2×nb+3×nc+4×nd)/(na+nb+nc+nd)
Wherein, the knowledge point number of na to be grade be A, the knowledge point number of nb to be grade be B, the knowledge point number of nc to be grade be C, the knowledge point number of nd to be grade be D; Reference grade TG is rounded, then by corresponding for the TG after rounding grade [A, B, C, D], thus determines current base grade;
Step 3. confirms on average to separate volume AOG and total volume TQN according to current base grade TG;
Step 4, confirm the average selected topic number of each knowledge point according to total volume;
Step 5. selects item difficulty, according to the examination question number of each knowledge point that step 3 draws, determines the complexity of per pass examination question;
Step 6, multiple-choice question type, in database topic type comprise multiple-choice question, fill a vacancy topic and subjective item, examination question type corresponding to each knowledge point is selected a topic successively according to the order of multiple-choice question, topic of filling a vacancy, multiple-choice question, subjective item; Until the examination question number of this knowledge point has been selected;
The problem time of the knowledge point scope that step 7. confirms according to step 1-6, selected topic difficulty, selected topic quantity, selected topic type and per pass examination question, calculate the cumulative time of this test volume, if the cumulative time is less than or equal to the test duration TT in step 1, then from database, generate test volume after random choose examination question.
2. the subject Topic Selection of a kind of knowledge based point system as claimed in claim 1, is characterized in that determining test duration TT according to knowledge point scope, TT=5*ng described in step 1, specifically determines as follows:
If knowledge point number is greater than 8, then ng=5;
If knowledge point number is between 5-7, then ng=4;
If knowledge point number is between 2-4, then ng=3;
If knowledge point number is 1, then ng=2.
3. the subject Topic Selection of a kind of knowledge based point system as claimed in claim 1, is characterized in that confirming AOG and total volume TQN according to current base grade TG described in step 3, specific as follows:
3-1. is by pressing subject and the confirmation of A, B, C, D grade to AOG is as follows:
If subject is primary school mathematics, then the AOG that A, B, C, D tetra-grades are corresponding is respectively 5,4,4,3;
If subject is little English learning, then the AOG that A, B, C Three Estate is corresponding is respectively 5,3,2;
If subject is Junior Mathematics, then the AOG that A, B, C, D tetra-grades are corresponding is respectively 4,3,3,2;
If subject is JEFC, then the AOG that A, B, C, D tetra-grades are corresponding is respectively 5,4,3,2;
If subject is junior middle school's science, then the AOG that A, B, C, D tetra-grades are corresponding is respectively 5,4,2,1;
3-2. being always calculated as of selected topic amount TQN: TQN=AOG × ng;
Described AOG refers to the average solution volume of 5 minutes.
4. the subject Topic Selection of a kind of knowledge based point system as claimed in claim 1, is characterized in that the average selected topic number confirming each knowledge point according to total volume described in step 4, and concrete confirmation rule is as follows:
If rule 1. total volumes be more than or equal to knowledge point number, then total volume and knowledge point number are divided by, obtain a business S and remainder Y, using business S as each knowledge point basis select a topic number, and then from the number of knowledge point a random selecting Y exercise question;
If rule 2. total volumes are less than knowledge point number, then adopt " equiblibrium mass distribution " principle, concrete:
1. chapters and sections homeostatic principle take chapters and sections as the benchmark that examination question distributes;
2. the examination question corresponding to volume random selecting knowledge point.
5. the subject Topic Selection of a kind of knowledge based point system as claimed in claim 1, is characterized in that the selection item difficulty described in step 5, specific as follows:
According to the examination question number of each knowledge point that step 3 draws, the complexity of per pass examination question is confirmed as follows:
If the examination question number of this knowledge point is 4 topics, then according to the present level determination difficulty of this knowledge point, if present level is A, then complexity is A two topic, and B two inscribes; If present level is B, then complexity is A mono-topic, and B two inscribes, and C mono-inscribes; If present level is C, then complexity is B mono-topic, and C two inscribes, and D mono-inscribes; If present level is D, then complexity is C two topic, and D two inscribes;
If the examination question number of this knowledge point is 3 topics, then according to the present level determination difficulty of this knowledge point, if present level is A, then complexity is A two topic, and B mono-inscribes; If present level is B, then complexity is B two topic, and C mono-inscribes; If present level is C, then complexity is C two topic, and D mono-inscribes; If present level is D, then complexity is C mono-topic, and D two inscribes;
If the examination question number of this knowledge point is 2 topics, then select two topics according to the present level of this knowledge point;
If the examination question number of this knowledge point is 1 topic, then select a topic according to the present level of this knowledge point;
If the examination question number of this knowledge point is 6 or 9 topics, then the situation being 3 with reference to examination question number amplifies volume multiple;
If the examination question number of this knowledge point is 8 or 12 topics, then the situation with reference to examination question number 4 amplifies volume multiple.
6. the subject Topic Selection of a kind of knowledge based point system as claimed in claim 1, if the cumulative time that it is characterized in that in step 7 exceeds the test duration TT in step 1, then revise as follows:
Scheme 1: maintain volume constant, the amendment test duration; Then test volume is generated;
Scheme 2: extract part examination question, concrete last one examination question once extracting each knowledge point, until the cumulative time after extracting is less than or equal to the test duration TT in step 1, then generates test volume.
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| CN107220917A (en) * | 2017-06-06 | 2017-09-29 | 高岩峰 | A kind of system for automatically generating survey topic of equal value |
| CN107316256A (en) * | 2017-05-10 | 2017-11-03 | 杭州博世数据网络有限公司 | A kind of physics exercise question-setting system |
| CN108520662A (en) * | 2018-04-23 | 2018-09-11 | 温州市鹿城区中津先进科技研究院 | A kind of teaching feedback system of knowledge based point analysis |
| CN109003492A (en) * | 2018-07-25 | 2018-12-14 | 厦门大学附属心血管病医院(厦门市心脏中心) | A kind of topic selection method, device and terminal device |
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