The recognition board can be wirelessly recognized by the tablet, and wireless screen projection onto the large screen can be achieved, facilitating students' viewing. The system adopts the augmented reality (AR) technology for display and dynamic interaction, allowing for an all-round observation of teaching knowledge. Meanwhile, in combination with elements such as text, pictures, and voice, it makes learning more vivid, visual, and intuitive. It enhances students' sense of participation and boosts their learning interests. The system is equipped with controls such as course content catalog, detailed explanations of difficult problems, and exit options. The software has an answering interaction function. Each AR content is provided with a question bank. Random questions can be assembled from the question bank for answering each time. A countdown is set for answering each question. After answering, the scores will be automatically calculated, and the answering details can be viewed. Meanwhile, it is also possible to choose to answer the questions again, and the questions for re-answering will be newly drawn from the question bank.