传统教学中，由于授课教师的不同，不同课程之间的知识关联点往往被忽视，出现过度的重复讲解，或者未指明新 旧知识点的融合应用。为了使授课中知识点衔接得更流畅，帮助学生建立知识关联体系。首先，举办教学沙龙，教师们填写教 学知识点关联表，寻找课程融合点。其次，借助全息投影技术，搭建全息投影金字塔。最后，在授课中，借助全息投影，让学生回 忆起已学知识，更好地与新课知识融合，理解新知。全息投影技术有助于将课程中的模型实体化呈现，加深学生印象，增加学习 时的视觉刺激，提升学生学习兴趣。这种教具展示形式的创新和教学模式的创新，有助于加深学生对知识的理解与吸收。

In traditional teaching, due to differences in teachers, the knowledge connections between different courses are often over‐ looked, resulting in excessive repetition or failure to integrate new and old knowledge points. To make the knowledge points more smoothly connected in teaching, we help students to establish a knowledge connection system. Firstly, we organize a teaching salon where teachers fill out a teaching knowledge connection table to find fusion points between courses. Secondly, we use holographic projection technology to build a holographic projection pyramid. Finally, we use holographic projection during the teaching to help students recall previously learned knowledge and better integrate it with new knowledge, and understand new information. To sum up, holographic projection technology visualizes models in courses, deepens students' impressions, increases visual stimulation dur‐ ing learning, and enhances students' interest in learning. This innovative form of teaching tool and teaching method helps to deepen students' understanding and absorption of knowledge.