144results about How to "Improve teaching effect" patented technology

The invention belongs to but not limited to the technical field of emotion recognition, and discloses a multi-modal classroom emotion recognition method and system based on modal adaptive learning, and the method comprises the steps: building a multi-modal data collection system, collecting the multi-modal data, such as texts, audios and videos, in a classroom teaching process in real time, and carrying out the real-time collection of the multi-modal data; and preprocessing and feature extraction are carried out on data of different modes. For emotion expression feature differences of different classroom scenes, a multi-modal data fusion method based on adaptive modal scoring (AMS) is provided, and a time sequence modeling and emotion classification model is constructed. The multi-modal fusion and time sequence modeling mechanism simulates the multi-dimensional perception of the teacher on the emotional states of the students in the class, and enhances the interpretability of the emotion recognition system. According to the system, weighted fusion is carried out on data features from texts, audios and videos through fusion of multi-modal data, and complete emotion feature representation is formed.

The invention relates to the technical field of classroom interaction analysis, in particular to an ideological and political classroom interaction analysis method and system based on multi-modal fusion. The method comprises the following steps: S1, collecting data from different modes in an ideological and political classroom; s2, extracting characteristics related to ideological and political teaching from data of different modals through a self-attention mechanism architecture; s3, fusing the features of different sources related to ideological and political teaching by using a convolutional neural network; and S4, using the fused features to establish an interaction analysis model based on a random forest model to analyze the effectiveness of ideological and political classroom interaction. According to the invention, data of three different modes of video, audio and text are fused, so that the method can comprehensively capture various interactive information in an ideological and political classroom, including teaching modes of teachers, emotional reactions of students and content quality of classroom discussion; the effectiveness of ideological and political classroom interaction can be evaluated by using an advanced machine learning technology system.

The invention relates to the technical field of intelligent teaching, in particular to an intelligent teaching system for traditional Chinese medicine clinical skill cultivation. The system comprises a virtual reality simulation module, an operation interaction module, an operation data analysis module, an adaptive learning feedback module and a teaching evaluation module. The virtual reality simulation module constructs a vivid traditional Chinese medicine skill training scene through three-dimensional modeling, ray tracing and physical simulation technologies, and the vivid traditional Chinese medicine skill training scene covers pulse feeling, acupuncture and moxibustion, massage and other operations. The operation interaction module collects user operation data and extracts features in combination with a variational auto-encoder. The operation data analysis module analyzes user operation deviation by using a graph neural network and a generative adversarial network, the adaptive learning feedback module generates a personalized learning strategy, and the teaching evaluation module evaluates a learning effect through fuzzy evaluation and analytic hierarchy process. According to the invention, intelligence, individuation and high efficiency of traditional Chinese medicine clinical skill cultivation are realized, the fidelity of teaching and the accuracy of feedback are improved, and the skill level and the training effect of learners are also improved.

The invention provides a multi-course fusion knowledge graph construction and real question analysis method and system. The method comprises the following steps: carrying out knowledge point alignment operation, carrying out integration operation on cross-course knowledge points, carrying out quantitative analysis on the knowledge points by utilizing a cosine similarity calculation method, and identifying and aligning synonymous knowledge points in different courses; performing knowledge point disambiguation operation, and processing the situation that the knowledge points have the same name and different meanings to obtain integrated knowledge points and an integrated knowledge graph; performing knowledge point standardization operation on the integrated knowledge points, and performing standardization processing on the integrated knowledge graph to obtain standardized knowledge points and a standardized knowledge graph; converting the normalized knowledge points, extracting to obtain key features, and processing according to the key features to obtain semantic feature sequence vectors; matching to obtain a matching result and applicable knowledge points; and verifying and evaluating the matching result, and mounting the question to the corresponding knowledge point. The technical problems that the knowledge point extraction result is one-sided and the result accuracy is not high are solved.

The invention discloses a proposition method and system combining a large model and an inference engine, a medium and a product, and relates to the field of artificial intelligence. Matching knowledge point rules from a preset reasoning rule base; combining the knowledge point rules to obtain a knowledge point combination sample; reasoning the knowledge point combination topics through a reasoning engine to generate a formal language expression topic set; based on a preset translation template, converting the formal language expression question set into a natural language expression question set; rewriting the natural language expression question set through the large model to generate an optimized question set; judging whether each optimization question in the optimization question set meets a preset output condition or not; and outputting the optimization questions meeting a preset output condition in the optimization question set. By implementing the method, the logic accuracy of question generation is improved.

The invention relates to the technical field of artificial intelligence, and discloses a student early performance prediction method based on an emotional big language model in an intelligent education scene, and the method comprises the steps: obtaining structured data and unstructured data related to student academic performance, and carrying out the preprocessing; the method comprises the following steps: extracting structured data into a structured feature vector through a multi-layer perceptron, extracting unstructured data through an emotion big language model to obtain an emotion feature vector, performing feature fusion on the structured feature vector and the emotion feature vector in a fusion layer, and introducing an attention mechanism to realize feature interaction. Generating fusion features reflecting behaviors and emotions of the students; and combining a plurality of classifiers into a multi-classifier model through an integrated learning method, and carrying out classification prediction on student academic performance based on fusion features. According to the method, the structural data and the emotional features are fused, the academic performance of the students can be accurately predicted, teachers are helped to recognize the students with poor performance as early as possible, and personalized learning support is provided.

The invention discloses a mathematics virtual-real fusion teaching system. A scene construction module is used for constructing a virtual teaching scene by using a virtual reality technology according to teaching contents and learning requirements of students; the animation simulation module is used for creating a mathematical model and an animation in the virtual teaching scene by utilizing a three-dimensional modeling technology and an animation production technology; the data acquisition module is used for acquiring learning behavior data and physiological data of students through the intelligent teaching terminal and the wearable sensor to obtain learning feedback data; analyzing the learning feedback data by using a machine learning algorithm to obtain learning state data of the student; and the teaching feedback module is used for adjusting a teaching mode and a teaching scene in the virtual teaching scene according to the learning state data. Through virtual reality and augmented reality technologies, in combination with a highly vivid virtual teaching scene and an innovative interaction mode, mathematics learning is more vivid and interesting, and the learning interest of students is greatly improved.

The invention relates to the technical field of education. The invention discloses a smart vocational education method and a control system thereof, and the system comprises a data collection module which is used for collecting learning data of students, a data processing and analysis module which carries out the comprehensive scoring of the learning data of the students through a scoring formula, and a personalized recommendation module which is used for initializing the learning paths of the students, collecting the learning feedback of the students, and carrying out the comprehensive scoring of the learning data of the students. The system comprises a data acquisition module used for acquiring data, a data processing and analysis module used for adjusting a learning path until a preset learning target is reached, a teaching evaluation module used for comprehensively evaluating various indexes of students, and a system integration module used for integrating the data acquisition module, the data processing and analysis module, the personalized recommendation module and the teaching evaluation module. The intelligent vocational education control system provides highly personalized learning experience for students through student feature recognition, adaptive learning path adjustment and comprehensive teaching effect evaluation. The system can dynamically adjust the learning resources and activities according to the learning characteristics and demands of each student, thereby improving the learning efficiency and motivation.

The invention discloses a holographic practical training platform based on mixed reality, which belongs to the field of mixed reality, and comprises the following steps: a data collection module obtains course content and environment data; the data processing module preprocesses the data to generate a course data set and an environment data set; the three-dimensional generation module performs three-dimensional modeling of a training course according to the course data set to obtain a three-dimensional holographic course model; the neural network construction module is used for training a convolutional network based on historical data and generating an environment feature recognition model; the matching calculation module inputs the environment data into an environment feature recognition model, generates teaching environment features, matches the teaching environment features with a three-dimensional course model, and imports the teaching environment features into MR equipment; the access module accesses students and a tutor into a simulation environment through MR equipment, synchronizes actions of the students and the tutor in real time, and enhances teaching interaction. According to the system, teaching interactivity and immersion are improved, and personalized learning is promoted.

The invention discloses a personalized teaching skill training system based on a large language model, equipment, a medium and a product, and relates to the technical field of teaching skill training.In the system, firstly, a teaching skill learning module provides answers meeting teaching requirements for teaching questions proposed by teachers so as to help the teachers to learn teaching skills; secondly, a plurality of virtual student roles and live-action teaching scenes are generated through a live-action teaching simulation module, and the virtual student roles and the live-action teaching scenes are simulated by teachers in an online video mode, so that the actual teaching ability is trained and improved; the teaching feedback analysis module analyzes the teaching behavior performance data and the teacher-student interaction data, generates a report and provides suggestions for defects; and finally, proper teaching skill training resources are recommended through a teaching resource recommendation module, so that the teacher is helped to deeply learn and improve the teaching method. According to the scheme of the invention, the teaching ability of teachers can be effectively improved, and especially the coping ability of the teachers facing diversified student behaviors and demands can be effectively improved.

The invention relates to the technical field of computer vision, and provides a teaching behavior analysis method, device, system, equipment, medium and product, and the method comprises the steps: obtaining the visual information of a teaching environment, the visual information comprises a depth map and a two-dimensional map; capturing a region of interest of the eyeballs of the students on a teaching medium based on the visual information, and generating a teaching medium thermodynamic diagram based on the region of interest of the eyeballs of the students on the teaching medium; and carrying out teaching behavior analysis based on the teaching medium thermodynamic diagram. According to the teaching behavior analysis method, device, system, equipment, medium and product provided by the invention, the attention condition of students can be displayed more intuitively. And on the basis, teaching behavior analysis is performed based on the teaching medium thermodynamic diagram, so that the attention distribution condition of the students in the classroom is known, the feedback information is automatically analyzed, the teaching method and strategy are adjusted according to the analysis result, and the teaching effect can be improved.

The invention relates to the field of smart campuses, and discloses a smart campus big data management platform, which comprises an intelligent teaching management system established based on a Spring framework, a campus intelligent security system and a campus life service system, and is characterized in that the intelligent teaching management system comprises a course management module, a teaching interaction module and a learning analysis module; the campus intelligent security and protection system is divided into a video monitoring module, an access control management module and an alarm early warning module, and the campus life service system is divided into an intelligent catering module, an intelligent dormitory management module and a campus navigation module. Through intelligent teaching management, campus intelligent security and protection and a campus life service system, teaching resource distribution is optimized, teaching interactivity is enhanced, teaching effects and student learning experience are improved, campus safety conditions are monitored in real time, abnormal conditions are quickly responded, safety risks are reduced, safety of teachers and students is guaranteed, and convenient catering, dormitory management and campus navigation services are provided. The convenience and efficiency of campus life are improved, and the satisfaction degree of teachers and students is improved.

The invention discloses an intelligent teaching auxiliary system based on a large language model, which relates to the technical field of intelligent teaching and comprises a progress management module, a resource management module, a teaching service module, a test question test module, a consultation evaluation module and a result auditing module. According to the intelligent teaching auxiliary system based on the large language model, the authenticity of the reflected learning condition of the student is judged according to the matching degree of the test question test result of the student and the input information, and the score record is corrected through manual analysis and auditing by a human teacher in allusion to the condition that the test score is not matched with the evaluation score; therefore, the system can adjust the teaching arrangement according to the real mastering degree of the teaching content of the students, can effectively avoid the improper teaching arrangement caused by the misjudgment of the conditions of the students, and facilitates the improvement of the teaching effect and the learning experience.

The invention relates to a digital teaching system based on a multi-mode intelligent technology. A teaching end displays digital content through screen equipment; the control end provides a digital classroom control capability for teachers or assistant teachers through mobile equipment; the student end realizes real-time interaction between students and the digital classroom through a mobile device configured with a voice device; the server is configured with an intelligent knowledge base, analyzes classroom data based on an intelligent algorithm and a big data analysis technology, generates a learning path and recommendation resources according to student conditions, processes questions with the help of natural languages, and drives the whole teaching to operate intelligently. According to the invention, classroom interaction intellectualization can be realized, teaching quality can be improved, multidisciplinary knowledge coverage and dynamic adaptation can be realized based on an intelligent knowledge base, modular course design and dynamic interaction are optimized, dialogue type and touch type interaction modes are fused, popularization application of code-free teaching design is supported, and teaching experience is improved. And classroom effect optimization driven by real-time data, enhanced teaching feedback and long-term improvement are facilitated.

The invention discloses a multi-mode-based classroom group learning emotion compensation method and device and a medium. The method comprises the following steps: acquiring multi-modal data of a classroom teaching process; processing the various multi-modal data by applying different emotion recognition models to obtain emotion recognition results; the emotion recognition result at least comprises a face recognition result, a light recognition result and a voiceprint recognition result; and performing emotion compensation operation on classroom teaching according to the emotion recognition result. According to the method, the multi-modal information of the classroom teaching process is obtained, the corresponding emotion recognition model is used for analyzing the multi-modal information of the classroom to obtain the teaching activity scene of the classroom and the emotional state of the student, and a better teaching atmosphere is provided for the classroom through the preset emotion compensation operation.

A high-simulation adjustable tooth teaching model comprises an upper alveolar bone and a lower alveolar bone and is characterized in that the two ends of the upper alveolar bone and the two ends of the lower alveolar bone are connected through elastic connecting parts, air bags are detachably arranged on the peripheries of the two sides of the upper alveolar bone and the peripheries of the two sides of the lower alveolar bone, the air bags are used for simulating cheeks, and the upper alveolar bone and the lower alveolar bone are connected through elastic connecting parts. A rubber balloon is led out from the bottom of the air bag; tooth assemblies are arranged at the bottom of the upper alveolar bone and the top of the lower alveolar bone, can be adjusted on the upper alveolar bone or the lower alveolar bone in a universal rotating mode and are locked on the upper alveolar bone or the lower alveolar bone through locking assemblies. The two sides of the dentition of the model can simulate the state of being surrounded by cheeks, and the simulation degree is higher; the teeth of the model can be universally adjusted and locked on the alveolar bone after adjustment, and the angle and orientation of the teeth can be adjusted, so that correct tooth cleaning modes of the teeth at different angles and orientations are comprehensively demonstrated, and the optimal teaching effect is achieved.

The invention provides an intelligent course arrangement method fusing learning characteristics of students and teaching nodes of teachers, and the method comprises the steps: obtaining original data used by daily equipment of the students, the use data comprises the use duration, the use frequency and the use time period, and obtaining a standardized equipment use data set through data preprocessing and abnormal value and noise data removal; the method comprises the following steps: acquiring use data of learnable electronic equipment, including login frequency, learning duration and interaction condition, cleaning and converting the data, and constructing a tag vector of the participation degree of a digital course; and establishing a tracking feedback mechanism of the electronic equipment use habit and the digital course participation degree of the student, regularly collecting equipment use data and course participation data of the student, updating and optimizing the electronic equipment use habit and digital course participation degree association model, and dynamically adjusting the course proportion.

The present invention discloses a training teaching management method based on virtual simulation, which relates to the technical field of virtual simulation teaching management, including: obtaining the operation type and operation timestamp of the user in the virtual simulation training teaching, correcting the timestamp, the operation type includes operation steps and operation parameters; according to the corrected timestamp, performing sequence consistency detection on the operation steps to obtain sequence consistency deviation; when it is less than or equal to a preset threshold, matching the operation step sequence with the predefined operation step sequence to obtain the operation step matching error; matching the operation parameters with the predefined operation parameters to obtain the operation accuracy; calculating the training operation score according to the sequence consistency deviation, the operation step matching error sequence and the operation accuracy, and sorting in descending order according to the training operation score. Through the time correction, consistency detection and operation scoring of the user operation, the user operation level is accurately evaluated, and the teaching effect of the virtual simulation training is optimized.

The invention discloses a physical experiment teaching demonstration device, and belongs to the technical field of experiment teaching aids, and the device comprises a bottom plate, the left side of the upper surface of the bottom plate is fixedly connected with a side plate, the upper surface of the bottom plate is provided with a plurality of sliding transverse grooves, and the right side of the side plate is provided with a plurality of through sliding vertical grooves. The interiors of the multiple sliding transverse grooves are in sliding connection with sliding blocks. By arranging a plurality of sliding transverse grooves and sliding vertical grooves, and sliding blocks, moving blocks and test boxes matched with the sliding transverse grooves and the sliding vertical grooves, the heights of a plurality of test boxes can be adjusted, so that a plurality of small balls fall from different heights, the problem that an existing device cannot simulate the motion law is effectively solved, the efficiency and intuition of teaching are improved, and the teaching efficiency is improved. And meanwhile, the height of the test box can be easily adjusted by rotating the operating handle through threaded connection of the adjusting screw rod and the moving block.

The utility model relates to the technical field of teaching models, and discloses a teaching model for hypertension caused by renal artery obstruction, which comprises a model main body, supporting plates are fixedly arranged at the bottom of the model main body close to two sides, a supporting assembly is arranged at the bottom of the model main body, and limiting assemblies are arranged at the bottom of the model main body close to two sides. The supporting assembly comprises a plurality of connecting blocks fixedly installed at the positions, close to the periphery, of the bottom of the model body, rotating shafts are jointly and rotationally connected to the positions, close to the bottom, of the opposite sides of every two adjacent connecting blocks, the model body can be supported by arranging the connecting blocks, the rotating shafts, rectangular plates, supporting columns and supporting blocks, and the height of the model body can be changed; and through arrangement of a limiting column, a spring A, a rectangular block and cooperation of a through hole A and a through hole B, the height of the model main body can be adjusted again, and the teaching effect is improved.

The utility model discloses a high-speed rail pantograph electro-pneumatic practical training system, which comprises a practical training equipment base, a protective shell, a control panel, observation windows, a pantograph main body, a pneumatic lifting structure, a mounting plate and a conductive turntable, and is characterized in that the protective shell is mounted on the practical training equipment base, the observation windows are arranged on four sides of the protective shell, and the control panel is arranged on the control panel. A pantograph body is installed on the practical training equipment base, a motor A is installed in the inner wall of the top of the protective shell, a missing gear is installed at the power shaft end of the motor A, the missing gear is meshed with a toothed plate installed on the protective shell, a spring column is installed between one end of the toothed plate and the protective shell, and the toothed plate is connected with an installation plate. According to the utility model, through the installation of the protection device, the problem of potential safety hazards caused by current generated during simulation can be avoided, the contact condition between a pantograph and a wire on a high-speed rail in real movement is simulated, the real effect of practical training is improved, and the teaching effect is more prominent.

The invention relates to the technical field of amusement science and technology equipment suitable for a natural mountain and water ecological environment, and discloses a bridge-shaped earthquake simulation mechanism for tourism, and the mechanism comprises a bridge body which serves as a carrier of the earthquake simulation mechanism, and a plurality of modules are installed in the bridge body; the inclination module is used for simulating a ground inclination phenomenon caused by an earthquake; the cracking module is used for simulating ground cracking caused by earthquakes; the collapse module is used for simulating a surface collapse phenomenon caused by an earthquake; the translation and dislocation module is used for simulating transverse movement in an earthquake; the upheaval module is used for simulating a ground upheaval phenomenon caused by an earthquake; and the hammering and vibrating module is used for simulating earthquakes to generate vibrations with different frequencies. According to the design, the tourist can freely experience the earthquake scene of the simulation mechanism under the condition that the tourist does not wear a binding device, the tourist can quickly escape when experiencing the simulated earthquake, the teaching effect is achieved for the experiencer to quickly respond when the experiencer really faces the earthquake, and meanwhile, the unique tourism experience is obtained by feeling the impact brought by the earthquake.

The utility model discloses a teaching aid for Chinese education, and relates to the technical field of Chinese education. The technical problems that an existing Chinese education teaching appliance is inconvenient to use, and some teaching contents are missed and are not displayed are solved. According to the technical scheme, the Chinese education teaching appliance comprises a teaching appliance main body, and further comprises a control switch, a front door plate, a display window, a power assembly, an auxiliary assembly, a teaching assembly and a supporting base; according to the Chinese education teaching appliance, the teaching assembly can circularly move through the power assembly, the teaching assembly can be assisted to move through the auxiliary assembly, automatic operation can be achieved through the teaching assembly, and compared with a traditional teaching mode, the device has the good teaching effect; different Chinese teaching contents can be changed at any time to display different Chinese characters, phrases and the like, use is more convenient and interesting, and then the interest and participation degree of students in the contents are improved.

The utility model provides a modularized step teaching device, which comprises a sand table assembly and a vibration test module, and is characterized in that the sand table assembly comprises a sand table base, a first frame, a plurality of accommodating grooves and an assembling table; wherein the first frame is inserted into one side of the upper surface of the sand table base. According to the utility model, a bridge structure building platform is provided for students by using the assembling platform, and then the bridge structure is sequentially limited in the vibration test module, the pressure bearing test module and the water entry test module by using the mounting module; therefore, vibration, pressure bearing and water entry tests can be carried out on the bridge structure in sequence, the bridge structure can be adjusted in time according to test results, and the learning efficiency and the teaching effect are improved. The bridge test structure is modularized, so that a pressure bearing test is performed on the bridge structure while a vibration or water entry test is performed, comprehensive test is performed on the bridge structure, and the test effect is improved.

The invention provides a brain-computer interface experiment method and device for multi-task teaching demonstration, edge computing equipment and a storage medium, and relates to the technical field of brain-computer interfaces, and the method comprises the steps: loading a brain-computer interface decoding model corresponding to a teaching normal form based on a currently selected teaching normal form; the obtained original electroencephalogram signals are input into a brain-computer interface decoding model for decoding processing, and real-time electroencephalogram data are generated; when it is judged that the similarity between the real-time electroencephalogram data and the preset electroencephalogram feature template is larger than or equal to a similarity threshold value, teaching commentary content corresponding to the preset electroencephalogram feature template is triggered; and the teaching explanation content is visually demonstrated. By adopting the method, the original electroencephalogram signal decoding process and the typical electroencephalogram characteristic teaching explanation can be combined, the visual presentation of the brain-computer interface key processing process is realized, and the intuition of teaching demonstration and the learning understanding effect can be improved.

The application discloses a teaching simulation and intelligent guiding method based on learning situation mining, which comprises the following steps: collecting student test paper and / or homework image data, and extracting structured data from the image data; calculating an error rate index according to the structured data, and determining difficult knowledge points based on the overall error rate; splitting the standard explanation text corresponding to the difficult knowledge points into a plurality of structured nodes, constructing a knowledge point explanation graph, and generating a standard explanation graph with the node maximum weight after weighting; collecting the explanation content of the simulated teaching of teachers in real time, and constructing a real-time explanation graph based on the explanation content; performing two-graph matching and explanation coverage calculation on the standard explanation graph and the real-time explanation graph, and generating targeted guiding questions; and after quickly determining the difficult knowledge points through learning situation mining, guiding the teachers to conduct targeted explanation from multiple angles and by using various expression modes, so that the problem that the traditional simulation practice lacks guidance and is separated from the real learning situation is effectively solved.

The invention relates to the technical field of semi-physical simulation practical training platforms, and discloses an intelligent manufacturing semi-physical simulation practical training platform, which comprises a transmission platform for constructing a one-way transmission experiment platform and consisting of an experiment interval and an output interval; the transmission efficiency demonstration components are installed at the two ends of the experiment section and connected to the transmission plane of the experiment section through rotation, and the transmission efficiency demonstration components and the transmission plane of the experiment section cooperatively demonstrate different transmission effects based on multi-angle adjustment of the transmission efficiency demonstration components; the experiment section and the output section each comprise a supporting frame and a conveying belt, the experiment section is further provided with side plates which are installed on the supporting frames in a bilateral symmetry mode, and the conveying efficiency demonstration components are installed on the side plates. According to the scheme, various enlightenment effects in the one-time conveying process are increased, and meanwhile the visual feeling of the conveying efficiency and the advantages and defects of different-direction conveying in the conveying process is increased.

The utility model discloses a clinical operation teaching demonstration device, which relates to the field of medical care, and comprises an outer frame, one side of the outer frame is provided with a placing groove, the top and the bottom of one side surface of the outer frame are provided with extension bosses, the middle part of the upper surface of each extension boss is provided with a through groove, and the through groove is provided with a through hole. A rotating device is connected into a through groove in the upper surface of the extending boss in a penetrating mode, the rotating device comprises a connecting rod connected to the connecting rod in a penetrating mode, main circular teeth are arranged at the top of the outer arc surface of the connecting rod, and auxiliary circular teeth are connected to the lower surfaces of the main circular teeth in a meshed mode; the height of the rotating device can be flexibly adjusted through the rotating frame with the angle rotating function and the demonstration bed, the height requirements of different teachers are met, the teaching effect is further improved, the 360-degree rotatable design of the demonstration bed achieves all-around demonstration by standing at one position, and the teaching efficiency is improved. The problems that a clinical medicine internal medicine teaching demonstration device in the current market is fixed and cannot be adjusted, and the structure is complex are effectively solved.

The utility model relates to a computer case for computer teaching, and relates to the technical field of computer teaching, the computer case comprises a case body, two side walls, close to each other, of the case body are open and are both provided with case plates, and the sides, close to each other, of the two case plates abut against each other; the sides, away from each other, of the box plates are hinged to the case body, the box plates are detachably connected with the case body, and the two box plates are detachably connected. The method has the effect of improving the object display teaching effect.