77 results about "Instructional efficiency" patented technology

The invention relates to the technical field of intelligent education, and discloses an innovation ability dynamic evaluation system and method based on multi-dimensional data fusion analysis, and the system comprises a process data collection module, a literacy feature extraction module, a dynamic evaluation engine and a teaching intervention engine. The method corresponds to the system. According to the method, multi-dimensional, dynamic and accurate evaluation of the innovation ability of the students is realized by constructing a complete data processing and evaluation closed loop, and specifically, performance characteristics of the students in innovation practice can be comprehensively captured by fusing and analyzing online and offline multi-modal process data; by means of a multi-mode cross-domain time sequence fusion model, dynamic tracking of the innovation ability development trajectory is achieved; finally, a personalized teaching intervention strategy is generated based on an evaluation result, a complete teaching closed loop of evaluation-diagnosis-intervention is formed, and the accuracy and teaching efficiency of innovative talent training are improved.

The invention relates to a classroom abnormal behavior intelligent detection and teaching intervention system, and the system comprises a data collection layer which is used for obtaining multi-modal data in a student classroom; the multi-modal data comprises a student classroom performance image set and sound signals of corresponding time; the data standardization layer is used for carrying out preprocessing and time synchronization on the multi-modal data to obtain standardized multi-modal data; the abnormal behavior detection layer is used for inputting the standardized multi-modal data into a behavior state classification model to obtain a behavior classification result; the behavior classification result comprises a behavior type, behavior duration and an intervention level label; the intervention decision-making layer is used for generating a teaching intervention instruction by utilizing the behavior classification result based on intervention decision-making logic; the teaching intervention instruction comprises a system prompting instruction and a teacher intervention reminding instruction. By adopting the system, behaviors of students can be identified and classified, targeted intervention is performed, the classroom teaching efficiency is improved, and the system assists in reminding the students to quickly return to a normal learning state.

The invention discloses a classroom teaching interaction system, and relates to the technical field of teaching systems.The classroom teaching interaction system comprises the steps that firstly, classroom teaching modes are created for users to conduct interactive learning; performing analysis based on the teaching basic information of each teacher and the classroom basic information of each student to obtain each skilled classroom teaching mode, each learning concentration time period and each non-learning concentration time period of each teacher; the classroom teaching modes of teachers in the classroom, each learning concentration time period and each non-learning concentration time period are adjusted, the teaching mode is implemented in each learning concentration time period, and the group discussion mode is implemented in each non-learning concentration time period, so that the depressed classroom atmosphere is broken; the learning enthusiasm and interestingness of students are aroused to improve the classroom teaching efficiency, and finally the information of each module is stored in the terminal equipment, so that a foundation is laid for the upgrading of the subsequent classroom teaching interaction system, and the long-term development of the classroom teaching interaction system is also facilitated.

The invention discloses a structural analysis literacy method, which comprises the following steps of: (a) literacy analysis: activating understanding through object association, context sentence making and culture traceability, and demonstrating in combination with an ancient character form and a wooden teaching aid; (b) disassembling strokes: decomposing a stroke sequence by using a magnetic gradient teaching aid, and triggering an acousto-optic alarm when the stroke order is wrong; (c) combined writing: training in three stages of hard pen and soft pen, and performing standard detection by means of stroke sticky notes and standard character grids; and (d) multi-modal strengthening: consolidating memory through activities such as puzzle and relay match, and carrying out personalized review based on the wrong character file. According to the technology, a gradient magnetic teaching aid, a three-dimensional evaluation matrix and multi-modal training are integrated, so that the time consumed for mastering a single character is shortened from 12.5 minutes to 6.8 minutes, the stroke error rate is reduced from 18.3% to 4.1%, the repeated practice frequency is reduced by 59% compared with that of a traditional tracing method (5.3 times reach the standard), the teaching efficiency is remarkably improved, and the GB / T 30240-2013 standard requirement is met.

According to the stress analysis method and system for physics teaching provided by the invention, through integration of a parameterized virtual experiment template, physical simulation engine real-time solution, stress intelligent analysis and a multi-modal dynamic visualization technology, abstract mechanical concepts and relationships can be converted into visual, dynamic and interactive visual graphical representation and data flow; the problems that in traditional teaching, stress analysis is static and abstracted, and real-time data association and interactivity are lacked are effectively solved. The system not only can automatically and intelligently judge and mark the power or resistance attribute according to the relationship between the friction force direction and the object movement direction, vividly illuminate the dual roles of the friction force, but also can support the exploration type and collaborative learning through the synchronous and independent interaction mode of the master control and the multi-student terminal, thereby improving the learning efficiency. And meanwhile, the contrastive analysis, process recording and playback functions are provided, so that teaching explanation and knowledge consolidation are powerfully assisted, and the intuition, interactivity and teaching efficiency of physics teaching are remarkably improved.

This invention discloses a method and system for pushing teaching content based on multi-source data analysis. The method includes the following steps: S1, collecting and preprocessing multi-source heterogeneous teaching data to obtain a standardized dataset; S2, fusing multi-source data using a graph neural network-based fusion model to generate a fusion feature vector, and constructing a multi-dimensional dynamic user profile based on this vector; S3, constructing a knowledge point intelligent graph, and analyzing the adaptability of teaching content from different dimensions in conjunction with the dynamic user profile; S4, generating a multi-objective push strategy and push scheme based on the teaching content adaptability analysis results, executing the push task and collecting feedback data, evaluating the push effect, and iteratively optimizing the push strategy. This invention, employing the above-mentioned method and system for pushing teaching content based on multi-source data analysis, can output systematic teaching content adapted to students' personalized needs and teaching progress, and continuously optimize the push strategy through a real-time feedback mechanism, thereby improving teaching efficiency and learning outcomes.

This invention discloses an augmented reality-based CAD interactive teaching method and system, belonging to the technical field of teaching systems. Specifically, it includes: real-time acquisition of video operation sequences and synchronized audio explanations from the teacher's end; decomposing video operations into discrete instruction nodes and extracting key parameter knowledge tags from the audio; establishing a spatiotemporal mapping relationship between the two; comparing the deviation between student operations and teacher instruction nodes using the operation trajectory marked on a heatmap as a benchmark; when the deviation exceeds a preset threshold, triggering an interactive circuit breaker mechanism to freeze the student's main interface, loading a matching correction micro-video in an independent sandbox window, and activating the interactive training module; collecting student operation response data through this module; and when the student operation response data consistently meets the standards, releasing the main interface from the circuit breaker state and activating the next operation instruction node. This invention improves the efficiency of CAD interactive teaching through a closed-loop teaching chain of "monitoring-circuit breaker-targeted training-unlocking upon meeting the standards."

The invention discloses a railway skill simulation teaching system based on end-cloud collaboration, and the system comprises a data acquisition module which is used for collecting data to generate a training set and a verification set; the double-end detection network module is used for constructing an RT-DETR double-end detection network comprising a track detection head and an action evaluation head and outputting a prediction result; the conflict modeling suppression module is used for generating a conflict tensor based on the two-end intermediate representation and implementing gating suppression on the decoding cross attention feature; the gradient collaborative updating module is used for calculating a gradient based on the two-end loss and generating a negotiation gradient to update a shared decoding network parameter; the ant lion search and strategy switching module is used for switching an exploration or convergence strategy based on the verification set loss and conflict trend and outputting an optimal position vector; and the model output module is used for training the model to converge and outputting the teaching model. According to the invention, intelligent evaluation and collaborative optimization of the teaching process are realized, and evaluation consistency, training stability and teaching efficiency are improved.

The invention discloses a multi-modal classroom progress evaluation and teaching assistance method based on an end-cloud collaborative architecture. Synchronously acquiring PPT pictures and facial expression data sets of teachers and text voices of the teachers at the classroom end side; splicing all the collected data and a preset prompt text to obtain a final input text; inputting the final input text into a pre-trained InternVL3 model for reasoning to obtain a reasoning result, pushing the reasoning result to a teacher terminal, and performing teaching guidance by a teacher according to the reasoning result; and repeating the above steps after a preset time period, so that the teacher continues teaching guidance according to the new reasoning result. The teaching rhythm is judged by fusing the teaching content of the teacher, the behavior response of the student group and the voice information, accurate and operable teaching feedback is provided for the teacher, and exercises meeting the current knowledge point and difficulty requirements are recommended especially when the progress is abnormal, so that the teacher is helped to dynamically adjust the teaching rhythm, and the classroom teaching efficiency is improved.

The invention relates to an economic data analysis teaching device and analysis method, and belongs to the technical field of data teaching devices. The economic data analysis teaching device comprises a teaching table and a protection assembly, and the protection assembly is arranged at the top of the teaching table; the economy teaching interaction mechanism comprises an interaction box, an interaction assembly and a teaching assembly; by arranging a display screen and an operation table in the interaction assembly, students can actively participate in operation and feedback in the learning process, and the understanding and interaction experience of the economic logic relation are enhanced. The teaching assembly is arranged on one side of the interaction area, so that a teacher can conveniently introduce disturbance factors to intervene a causal chain constructed by students, a strategy correction training closed loop is formed, and the strain and analysis ability is improved. Interaction and teaching functions are integrated on the same platform, cooperative operation of teachers and students is realized, and teaching efficiency is improved. And the protection assembly can shield the key module during idling or transferring, so that the equipment safety and the service life are guaranteed.

The utility model belongs to the technical field of teaching aids, and particularly relates to an assembled four-star instrument teaching aid, which comprises a detachable and assembled part assembly, and the part assembly comprises a cross-shaped buckle, a civil star disc, a Mars disc, a pointer disc, a golden star disc and a four-star instrument disc. The civil star disc is the largest disc body, the Mars disc, the pointer disc, the golden star disc and the four-star instrument disc are sequentially stacked on the civil star disc from bottom to top, and the centers of the disc bodies are fixedly connected through the cross-shaped buckles. The disc bodies are provided with scale marks, the scale marks comprise year scales, date scales and direction indication scales, and the scale marks are used for achieving the dynamic position prediction function of golden stars, Mars stars, wood stars and earth stars through scale matching between the disc bodies. And the teaching efficiency is improved, and practicability and interestingness are both considered.

The invention discloses an online art education immersive scene interaction system, and belongs to the field of artificial intelligence and art education cross technology, and the interaction system comprises an intelligent art education teaching resource module, an online art education immersive teaching scene design module and a visual voice interaction module. The intelligent art education teaching resource module and the online art education immersive teaching scene design module realize online art education immersive scene interaction through the visual voice interaction module; the interactive system recommends personalized professional teaching resources to the learner according to the professional basis, the emotion level, the personalized features or the course teaching requirements of the learner, and achieves the deep integration of the online art education high-quality teaching content and the advanced teaching technology in an immersive teaching scene. The immersive teaching experience of internet learners is enhanced, the teaching efficiency and the teaching effect of online art education professional courses are remarkably improved, and the method is of great significance in improving the online art education level.

The invention relates to a student virtual simulation interactive learning effect evaluation method and system, and the method comprises the steps: dividing a course virtual simulation interactive facility network according to influence factors, building student virtual simulation interactive behavior parameters, and carrying out the partitioning of the course virtual simulation interactive facility network through a three-dimensional magic cube classification method; constructing a group network time sequence of virtual simulation interaction of different levels of facility behaviors of students in the class; calculating a specification degree and a proficiency degree based on a cross-correlation function, and calculating an equipment control degree based on a state parameter difference value proportion; establishing three-dimensional space indexes according to the standard degree, the proficiency degree and the equipment control degree, and constructing student virtual simulation interactive learning effect partitions based on a three-dimensional magic cube classification method; and establishing a type-capability short plate association rule in each partition according to a learning effect evaluation index, and automatically generating an evaluation of a corresponding weak link in a final learning effect report. The method solves the problems of lack of class overall analysis and blindness in teaching optimization in the prior art, and improves the teaching efficiency.

The present invention provides an English teaching management method and system based on semantic understanding and cloud services, which relate to the field of electronic data processing. The method comprises: establishing a cloud-based teaching resource library; determining multiple student groups based on learning pattern tendency data, English proficiency level data, and a weighted graph model of points of interest of multiple students, and generating basic teaching plans corresponding to the student groups; retrieving teaching resources from the cloud-based teaching resource library based on the basic teaching plans corresponding to the student groups, and pushing the corresponding teaching resources to the student terminals corresponding to the student groups according to the teaching progress of the basic teaching plans of the student groups; generating supplementary push content corresponding to the student groups based on real-time relevant information and the learning pattern tendency data, English proficiency level data, and a weighted graph model of points of interest of multiple students included in the student groups using semantic understanding technology, and pushing the supplementary push content to the student terminals corresponding to the student groups, thereby improving the efficiency and quality of English teaching.

The invention relates to an intelligent teaching system for English learning, two sides of a host are respectively provided with a student end display screen and a teacher end display screen, a bottom base is integrated with a driving spelling roller and a driven spelling roller, and after students rotate the driving spelling roller to spell words, a synchronous belt drives the driven spelling roller to synchronously record contents; a writing board is arranged in the base in a sliding mode for students to write, a first supporting frame drives a camera with an illuminating lamp through a reciprocating lead screw to shoot spelling content, a second supporting frame connected with a spring rod is in linkage with another set of cameras to shoot the writing content, and images are transmitted to a teacher end display screen in real time. A teacher can remotely check spelling and writing results, identifies errors through the system and prompts the errors, and can control a loudspeaker to play words for students to write from memory; the system reduces the classroom examination time, realizes the instant feedback of errors, and improves the teaching efficiency.

The invention relates to the technical field of interactive teaching, in particular to a music teaching demonstration device which comprises a teaching cabinet, a damping mechanism is arranged above the teaching cabinet, the damping mechanism comprises a concentric-square-shaped frame plate, a moving box is slidably connected into the concentric-square-shaped frame plate, and an insection plate is connected into the moving box in a penetrating mode. The two ends of the tooth pattern plate are fixedly connected to the inner wall of the concentric-square-shaped frame plate, one side of the tooth pattern plate is meshed with a damping gear, the damping gear is installed in a moving box, a turnover mechanism is arranged in the moving box and comprises a turnover plate, the turnover plate is rotationally arranged in the moving box, and the turnover plate is connected with the damping gear. A first intelligent display screen and a second intelligent display screen are arranged on the two faces of the overturning plate correspondingly. The device integrates mechanical damping, intelligent display, pneumatic locking and adjustable visual angle design, is suitable for multiple musical instrument teaching scenes, and through comprehensive application of technologies such as mechanical damping, intelligent display and pneumatic locking, the teaching efficiency and the visualization level are remarkably improved.

The present invention relates to the field of personalized push technology, specifically a personalized music teaching content push system, the system including a user ability assessment module, a teaching content matching module, a learning path planning module, a push strategy optimization module, a behavior analysis and prediction module, a teaching effect feedback module, a dynamic adjustment and optimization module, and a personalized recommendation module. The present invention adopts clustering algorithms, support vector machines, and random forest algorithms to accurately assess learner abilities, K-means clustering and hierarchical analysis method to achieve matching between teaching content and abilities, Dijkstra algorithm and dynamic programming to design personalized learning paths, Q learning and policy gradient method to optimize push strategies, long short-term memory networks and seasonal decomposition time series to predict learning needs, and utilizes item response theory, Markov decision process and Bayesian network to improve feedback adjustment accuracy. Deep Q network and Monte Carlo tree search are used to optimize personalized recommendations and enhance teaching efficiency and results.

The invention discloses an image identification tracking method based on an interactive intelligent experiment teaching system. The method comprises the following steps: S101, acquiring experiment scene data through a time-space aligned multi-mode sensor array; s102, realizing feature level fusion of optical, thermodynamic and electromagnetic wave data by using a cross-modal space-time alignment network; s103, teaching semantic constraints are injected, semantic constraint items are generated based on a predefined teaching knowledge graph, and a target tracking trajectory is corrected; s104, a feedback strategy is dynamically selected according to the student portrait model, the feedback strategy comprises a safety blocking instruction and a teaching prompt instruction, and according to the image recognition tracking method based on the interactive intelligent experiment teaching system, multi-modal sensor data are fused, a teaching knowledge graph is dynamically embedded, and a personalized feedback mechanism is constructed; accurate tracking, compliance judgment and self-adaptive teaching intervention of operation behaviors of students are realized, and the teaching efficiency is improved.

The invention relates to a student personalized homework correction method and system based on a generative algorithm and a terminal, and relates to the field of wisdom education, and the method comprises the steps: obtaining homework files in various formats, and converting the homework files into a structured question template, the homework files are uploaded by a teacher terminal, and the structured question template comprises a question ID, question content and an answering region; according to the structured question template, receiving homework data uploaded by the student terminal and extracting homework content; identifying question types and associated knowledge points in the homework content to form structured data; obtaining personalized student portraits, wherein the personalized student portraits comprise knowledge mastering degrees, problem solving habits and learning style characteristics; performing correction operation on the structured data to obtain a multi-dimensional evaluation result; and according to the multi-dimensional evaluation result and the personalized student portrait, differential learning guidance is generated, and an analysis result is presented in a visual form. The method has the effects of improving the teaching efficiency and accurately implementing personalized learning guidance.

The invention relates to the technical field of computer-aided teaching, in particular to a role animation teaching system and method based on a virtual simulation technology and a medium, which are mainly suitable for role animation motion law teaching of an animation design major, and realize multi-role dynamic comparison, detail decomposition and interactive practice functions through the virtual simulation technology. The role animation teaching system based on the virtual simulation technology comprises a basic module, a comparison module and a detail module, the character animation teaching system based on the virtual simulation technology has the core advantages of being higher in interactivity, richer in visualization, higher in practicability, wider in platform compatibility and better in teaching efficiency, and the advantages are directly brought by the basic module, the comparison module, the detail module, the practice module and multi-platform support. Compared with the prior art, the teaching threshold is lowered, the learning interest and achievement of the user are remarkably improved, and the method is suitable for efficient teaching resource construction of the animation design major.

The invention relates to the field of education equipment, and provides a mathematical modeling teaching interaction device supporting multi-user cooperation, which comprises a central cooperation main screen, a plurality of student interaction terminals, a data interface module, a modeling logic module, a real-time recording and feedback module and a teacher control and evaluation terminal. According to the mathematical modeling teaching interaction device supporting multi-user cooperation, through innovative designs such as advanced multi-point touch control technology, flow guide, intelligent data import and automatic recording evaluation, visualization, interaction and individuation of the teaching process are effectively achieved. The system breaks through the limitation of traditional mathematical modeling teaching, greatly enhances the learning interest and actual operation capability of students, and improves the teaching efficiency and quality.

The utility model discloses a special multimedia teaching projection device for interior design, which relates to the technical field of projection devices and comprises a mounting plate, a fixing cylinder and a projector, a transverse sliding component is arranged on the bottom surface of the mounting plate, a fixing plate is arranged on the top surface of the fixing cylinder, a telescopic cylinder is arranged in the fixing cylinder in a sliding manner, and a lifting component is arranged in the fixing cylinder. A fixing assembly is arranged on one side of the bottom end of the outer wall of the fixing cylinder, a fixing disc is fixedly connected to the bottom end of the telescopic cylinder, multiple sets of fixing bolts penetrate through the fixing disc to be connected with the projector, and a rectangular groove is formed in one face of the fixing cylinder; the dovetail guide blocks are matched with the telescopic cylinder, the dovetail guide blocks are symmetrically arranged on the two sides of the bottom end of the inner wall of the fixed cylinder, the telescopic cylinder moves along a track limited by the dovetail guide blocks in the lifting process, and finally the problems that an existing lead screw deflects due to gravity, lifting of the projection device is blocked, and teaching convenience and efficiency are affected are solved. And the use effect and the teaching efficiency of the projection device are improved.

The invention discloses an internet-based intelligent classroom teaching management system, relates to the field of intelligent teaching, solves the problem of poor management effect of the intelligent classroom teaching management system, and comprises a data acquisition module which is used for carrying out spatial modeling on the position of a target student and acquiring a video stream to obtain target student acquisition data, the model creation module is used for carrying out video stream analysis on target student acquisition data and mapping a student position space model according to an analysis result to obtain a position dynamic space model, and the action analysis module is used for carrying out periodic action analysis on a target student in the position dynamic space model, obtaining classroom action monitoring data according to the analysis result, and sending the classroom action monitoring data to the display module. And the teaching management module is used for carrying out classroom teaching management on the target students according to the classroom action monitoring data. The teaching management level is improved, and the teaching efficiency is ensured.

The application provides a teaching tool and method based on multi-agent and digital human technology, comprising: obtaining comprehensive teaching information of a user to be taught; determining a teaching path plan and a teaching scheme recommendation of the user to be taught according to the comprehensive teaching information, wherein the teaching path plan comprises a plurality of teaching tasks, and the plurality of teaching tasks are completed by different artificial agents in cooperation; in the process of teaching the user to be taught according to the teaching path plan, obtaining current learning performance information of the user to be taught, determining the difficulty of exercises according to the learning performance information, and generating an exercise scheme matched with the difficulty of the exercises; generating a personalized test paper according to a preset teaching goal and the current learning performance information, and in the process of testing the user to be taught according to the personalized test paper, identifying abnormal test behaviors of the user to be taught through multi-modal behavior analysis. The application can improve the teaching efficiency and user experience when the artificial agent teaches.

The invention relates to informatization education and teaching interaction equipment. The equipment comprises a supporting frame; the adjusting mechanism is arranged on the supporting frame; the main showing stand is connected with the adjusting mechanism, and a main writing board is arranged on one side of the main showing stand; at least one expansion display board; wherein a movable groove is formed in the main showing stand, and the expansion showing board is arranged in the movable groove in a sliding mode, so that the expansion showing board can stretch out or retract relative to the main writing board, and the overall teaching showing area is expanded or contracted. According to the informatization education and teaching interaction equipment provided by the invention, the teaching display area can be elastically adjusted through the display board which can be expanded in a sliding manner, so that the continuity and integrity of teaching information display are ensured, and the teaching efficiency and the classroom flexibility are effectively improved.

This invention relates to a smart classroom system, electronic device, and storage medium based on a digital textbook platform. The system includes: a classroom environment construction module for building an online classroom environment, including student and teacher classroom environments; a teaching content processing module for generating teaching plans based on uploaded courseware or selected digital textbook content; a teaching activity provision module for matching corresponding teaching activities according to uploaded courseware or selected digital textbook content and generating corresponding teaching activity content; an activity data monitoring module for real-time monitoring of classroom data and processing it into corresponding indicator data according to preset indicators; and a feedback data module for generating teaching feedback data based on the indicator data of the teaching plan and / or teaching activities. This invention simplifies the teacher's operation process, provides rich and easy-to-use teaching resources, improves classroom teaching efficiency, and enhances teaching effectiveness.

The invention relates to the technical field of teaching systems, in particular to an AI intelligent technology-based auxiliary electrotechnics digital teaching system and method. Comprising a data storage and management module, an intelligent detection and scoring module, a data analysis and diagnosis module, a dynamic partitioning and scheduling module, an adaptive learning and intervention module and a system management and man-machine interaction module. According to the invention, by constructing a dynamic learning portrait and an intelligent partitioning mechanism, large-scale individual material teaching is realized, the system divides students into differentiated teaching intervals such as a comprehensive consolidation area and a theoretical advantage area based on a knowledge graph and multi-dimensional ability evaluation, and personalized learning resources are accurately pushed to each student through a self-adaptive engine. The precise targeted teaching ensures that learning support is highly matched with individual requirements, and the teaching efficiency and the learning effect are improved.

The invention is suitable for the technical field of intelligent interaction, and particularly relates to an intelligent interaction method and system of a digital intelligent curriculum, and the method comprises the steps: constructing a teaching local area network, enabling a student to be connected with the teaching local area network through a mobile terminal, and monitoring the activity state of the mobile terminal through the teaching local area network; teaching courseware is obtained through the mobile terminal, teaching feedback information is obtained in real time in the teaching process, and the teaching feedback information is sent to the background through the teaching local area network; associating the teaching feedback information with related contents in the teaching courseware, summarizing and generating feedback summary information; and marking the feedback summary information at a corresponding position of the teaching courseware used by the teacher, and initiating a prompt. According to the method, the summarized information is summarized by using the large language model, so that the types of the feedback problems of the students to each position in the teaching courseware are determined, the teachers are prompted, questions of the students can be responded quickly in real time, the teaching process does not need to be interrupted independently, and the teaching efficiency is improved.

The utility model relates to the technical field of teaching appliances, and discloses an English teaching tool beneficial to improving English teaching efficiency, which comprises a main body plate, an extension mechanism is slidably connected in the main body plate, an opening is formed in the right side of the main body plate, and a storage mechanism is rotatably connected in the opening; the extension mechanism comprises a sliding rod, the exterior of the sliding rod is slidably connected to the interior of the main body plate, an upper extension plate is fixedly connected to the top of the sliding rod, two circular grooves are formed in the inner wall of the top of the main body plate, and first springs are fixedly connected to the inner walls of the tops of the circular grooves. According to the utility model, in the teaching process, especially when a teacher writes more contents, such as explaining a long English text structure or writing a large number of example sentences, the writing area can be conveniently expanded without being limited by the fixed writing area of a traditional small blackboard, so that the teaching efficiency is improved.

The invention relates to the technical field of artificial intelligence, and discloses an answer paradigm screening method, a storage medium and a related device, and the method comprises the steps: receiving the answer data of students, and forming a preliminary student answer set; randomly grouping the preliminary student answer set to obtain a plurality of preliminary assessment answer buckets; obtaining a thought abstract and a preliminary confidence score of each normalized answer text by using a large model; according to the content of the thought abstract, re-clustering and grouping the normalized answer texts with the initial confidence scores higher than a preset threshold value into a plurality of method buckets; on the basis of the preliminary confidence score, performing secondary evaluation on the standardized answer text in each method bucket by using a large model to obtain a final confidence score of each standardized answer text; and outputting the normalized answer text with the highest final confidence score in each method bucket as an answer paradigm. According to the method, the answer paradigm of each method in the answers of the students can be screened out with relatively low cost, and the teaching efficiency of teachers is improved.