Under the guidance of the OBE educational philosophy and in close alignment with new engineering disciplines and accreditation standards, “Analog Circuits” course is transitioning from a traditional, theory-intensive foundation module into a modern, core professional course that equips students with applicable, skilled, and competent profiles ( Li, 2025 ).

A clear and measurable linkage must be established between course objectives and graduation requirement indicators. Vague expressions like “master... knowledge” must be replaced by a correlation matrix. Course objectives should be constructed through backward design to ensure they underpin the graduation requirements, utilizing demonstrable action verbs (e.g., “can calculate,” “analyze,” “design,” “apply”).

The restructured course objectives articulate the connection between each instructional activity and the required graduate competencies, clarifying learning purposes for students and sharpening teaching focus for instructors. By implementing objective-specific assessments, student proficiency across different competency dimensions can be precisely evaluated, providing robust evidence for the continuous improvement of teaching quality.

Focusing on the development of the electronic information industry and its contribution to the local regional economy ( Jiang et al., 2024 ), the course content is been restructured. We modularized the curriculum, replacing the linear structure of traditional textbooks with progressive and relatively independent teaching modules ( Yu et al., 2025 ).

With the initial goal of designing “basic amplifier circuits”, this course explains the core operating mechanisms of PN junctions, diodes, and transistors from a semiconductor physics perspective. Then it proceeds to cover the analysis and design methods for basic transistor amplifier circuits, guiding students to understand the relationship between device models and physical reality, as well as the design principles of fundamental amplifier circuits. Subsequently, the working mechanism of field-effect transistors and their fundamental amplification circuits are introduced in parallel. This directly supports the graduation requirement indicator point for “establishing and solving mathematical models”.

The course establishes a pedagogical framework centered on architecting a complete operational amplifier, sequentially unifying core circuit modules. Students explore the functional partitioning and collaborative dynamics within an integrated op-amp, learning how to combine circuits to achieve desired system characteristics (e.g., high gain, low output impedance). This process rigorously develops their ability for system-level analysis and abstract modeling, providing direct support for the corresponding graduation requirement.

By introducing typical engineering cases such as “audio power amplification” and “EEG signal amplification”, students learn to design complete signal processing systems using integrated operational amplifiers and related components. This approach strengthens their system integration awareness and supports the learning objective of “functional circuit design and system integration”.

Modular reorganization enables students to structure previously disconnected knowledge into a logical “components-to-systems” progression. This fosters a system-level perspective on circuit functions and enhances systems thinking skills. By embedding theory within project-based learning, the course sparks student engagement and inquiry, equipping them with adaptable circuit analysis and design skills transferable to novel problems.

A diversified assessment framework has been established, integrating formative and summative evaluations with an emphasis on competency development. The overall grade distribution has been restructured as follows: Formative Assessment (40%) + Final Examination (60%). The formative component comprises two multi-unit quizzes (20% total) and one midterm assessment (20%).

The final exam has been substantially redesigned to shift focus from rote memorization and formulaic application toward complex, open-ended problems requiring synthesis, design, and analytical reasoning. This revised format evaluates students’ grasp of core conceptual models and their capacity to analyze and resolve complex engineering challenges. By aligning assessment with sustained learning, the reform discourages last-minute cramming and encourages consistent academic engagement throughout the course. These diversified evaluation methods prompt students to employ critical thinking, systematic analysis, and creative design, thereby fostering the advanced cognitive abilities essential for addressing multifaceted engineering problems.

To meet the requirements for graduates’ comprehensive competencies under the new engineering discipline development and engineering education accreditation, the course must deepen industry-education integration to cultivate students’ innovative thinking and patriotic spirit. When analyzing device characteristics and calculating circuit parameters, emphasis is placed on data objectivity and precision, fostering a rigorous, pragmatic, and meticulous scientific attitude. Centered on the core technology of “chips”, the course introduces the development trajectory and gaps in the global semiconductor industry. By sharing stories of Chinese scientists and enterprises striving for excellence, it inspires students’ sense of mission to serve the nation through science and technology.

Through a comparative analysis of student outcomes in the Analog Circuits course before and after the teaching reform, the effectiveness of the new approach is evident ( Figure 1 ). The reform has led to substantial improvements in overall learning outcomes: the average course score increased significantly from 53.3 to 65.3, while the pass rate surged from 30.3% to 71.11%. These results demonstrate that the reforms have successfully strengthened students’ mastery of core course content. Moreover, the grade distribution has become more balanced. Prior to the reform, 69.7% of students failed the course, reflecting a polarized academic performance pattern. In contrast, post-reform overall grades now approximate a normal distribution, indicating that the improvements have benefited a broad range of students and effectively reduced the rate of academic underachievement. These positive changes are likely attributable to specific initiatives such as increased instructional hours and optimized teaching and learning processes.

Project-driven modular teaching and comprehensive experimental design have strengthened students’ ability to independently execute circuit design, simulation, and system analysis. These methods have significantly boosted student motivation and initiative. Students now demonstrate greater exploratory skills in post-class seminars and project reports. In recent years, more students from this course have earned provincial or higher awards in prestigious competitions such as the National Undergraduate Electronic Design Contest and the “Challenge Cup”. These awards comprise 2 national bronze medals; and 7 provincial-level awards (4 first prizes and 3 second prizes). Their engineering competence and innovative thinking have gained broad recognition from industry and society.

A multi-dimensional evaluation system integrating formative assessments and summative examinations has been established to support continuous improvement in teaching quality. Analysis of formative assessment data enables instructors to promptly identify weaknesses in instruction and common student learning difficulties. This facilitates timely adjustments in teaching strategies and precise interventions. Furthermore, the inclusion of comprehensive and design-oriented questions in final examinations effectively directs student learning toward knowledge integration and practical application.

The feedback was gathered from anonymous open-ended survey questions at the end of each semester. Student feedback on teaching is shown in Table 1 . Based on two years of student evaluation data for the “Analog Circuits” course, the teaching reforms have yielded both quantitative and qualitative improvements in instructional quality. Student participation in course evaluations increased significantly from 48.48% in 2023 to 63.83% in 2024, indicating enhanced student engagement and evaluation willingness. Concurrently, the average course evaluation score rose markedly from 90.88 to 96.40 points, reflecting substantially improved student satisfaction with the teaching quality. These elevated evaluation results are further corroborated by the observed concurrent improvements in student academic performance and a notable rise in pass rates, collectively demonstrating the substantial impact of the teaching reform on overall educational effectiveness.

Students reported positive teaching outcomes, noting that “course objectives were clear and content highly practical”, and that “teaching methods effectively stimulated learning interest”. The course was described as “rich in content” and “enhancing the ability to analyze and debug circuits”.

Through the implementation of teaching reforms, the instructional team has consistently refined its educational philosophy and enhanced teaching competencies. These efforts have yielded significant outcomes, including the approval of university-level teaching reform projects and awards, demonstrating a virtuous cycle of mutual development between teaching and learning. Since the reform initiative launched in 2023, the team has achieved recognition as a university-level blended online-offline first-class undergraduate course and published two academic papers on blended learning innovations in analog circuits education.