This article mainly takes the digital circuit experiment course as the background, and introduces the difficulties of hardware experiment course due to lack of flexibility during COVID-19. Through the continuous analysis and adjustment of teaching methods and contents, we summarize the advantages and disadvantages of online teaching and traditional experimental teaching. At the same time, we also propose hybrid hardware experiment teaching method, which has higher flexibility, and the effect is consistent with the traditional experiment teaching effect, which can ensure synchronization and meet the individual needs. In the future, both online teaching and traditional teaching will play an important role, and will no longer be two completely independent teaching methods. The hybrid hardware experiment teaching method is a new experimental teaching methods worth trying and spreading.

Experiment is an important part of computer science education. In recent years, the online experimentation platform has become the main way of experimenting in computer science courses due to the convenience of online experimentation, which is not restricted by time or location and is easy to implement. The current status of the online experiment platform is mostly developed independently by each course, with highly coupled frontend backend and databases, and has large differences between the platforms, so that students lack a unified online experiment experience in the experiment process and have high adaptation costs to the new experiment platform. Besides, the teaching side has difficulties in analyzing and comparing because of the lack of unified experiment data management due to the scattered and differentiated platforms. In view of the current status of the online experiment platform, this paper proposes a new extensible online experiment platform architecture based on the message queue mechanism, and implements an extensible online experimental platform, UNILAB, which supports the online experiments of the online judge type or CI evaluation type courses. The extensible online experiment platform decouples the front and back ends of the traditional design, is more universal in the experiment teaching process, and brings a more consistent usage experience for the user. The platform provides unified data management and comparative analysis, which is beneficial for the teaching team to analyze the data and experimental behavior, and help them improve their experiment teaching. The message queue mechanism has good extensibility, which can provide low-cost insertion for new courses. The new experiment evaluation request can be easily added to the queue, dispatched to the corresponding module, and returned to the user. The platform has supported the experiments of several courses these years, including Fundamentals of C++ Program, Operating System, and other courses, and got good feedback from both the students and the teachers.

This Research-to-Practice Work in Progress paper presents a type of Digital Logic Circuit experiment device like toys to attract the students' interest for the experiments. Digital Logic Circuit course is a course that emphasizes the actual hand-on experiment. Because it is fundamental course, its experiment maybe monotonous and boring for the students. The traditional experiment is hard to attract students. In this paper, we tried to turn the experimental device to the digital toys. We divided the whole experimental device into several kinds of modular blocks, which can perfectly cover the contents of the traditional experiments and greatly improve the fun of students' experiment. The experiment integrated the traditional chip connection type experiments and the programmable device experiments. The experiment blocks were colored, like the toy blocks, and it is easy to connect, so the experimental process is very interesting. The students can do the experiment like play toys, to build a simple and interesting digital circuit. We had used this device in the Digital Logic Lab course in a small scale, the students were more willing to do the experiment than others not using this device. The results proved that this kind of experiment is beneficial to train students in improving their hardware application ability, not only in mastering the knowledge effectively, but also in strengthening the ability of practice.

This Research to Practice WIP presents the analysis of the project organization and evaluation in Digital Logic course. How to reasonably organize the team, analyze the feasibility of the task, and correctly evaluate each member in the team is the problem in the teaching process. The project is aimed to mobilize the team members, let them play their roles in the project, and master the curriculum knowledge. In this paper, we use different team organization, feasibility analysis of the task, and use comprehensive evaluation for the project members in the team. Through the improvement of the organization, feasibility analysis of every projects and evaluation of the team in project, students reflect well and the teaching efficiency is improved.

Embedded System Curriculum at Tsinghua University is target at advanced undergraduate senior students in CS department. At the end of this course, an overall understanding about System is expected to be obtained by students who have gotten perfect software knowledge from software series curriculums and hardware knowledge from hardware series curriculums. Embedded System is unique for its close association with actual application, thus an effective laboratory education is of great importance for embedded system curriculum. In this paper, we are dedicated to reform existing experimental teaching models, methods and laboratory platform to improve system level innovation practice for CS undergraduate students. Firstly, we mainly analyzed the characteristics of embedded laboratory education and current generation students. Based on this analysis, some principles as well as a concept model that guiding the designing of embedded laboratory platform are proposed. And then we present the whole innovative embedded laboratory system in CS department of Tsinghua University. Supported by the system, some typical projects will be presented, include intelligent Greenhouse, Sunflower, intelligence handcart, intelligence spider and rotorcraft.