In this work, we introduce EduTeller, a system developed to support the continuous improvement of course quality at LTH by providing structured insights into course performance over time. The system enables interactive exploration of Course Experience Questionnaire (CEQ) data, combining performance indicators such as pass rates with student-reported measures such as satisfaction, workload, and assessment perceptions. The contribution of this work is twofold. First, EduTeller provides a unified, query-based framework for analyzing course data across multiple academic years, allowing users to explore trends, compare courses, and examine relationships between variables. Second, we demonstrate the use of the system through an analysis of mathematics courses at LTH, where we investigate how course performance and student experience evolve over time, including potential effects of exam format changes and external factors such as the COVID-19 period. The results illustrate how EduTeller can be used to identify trends and uncover relationships between objective outcomes and subjective experiences. By making course evaluation data easier to access and interpret, the system supports reflective teaching practice and data-informed decision-making. The system is “temporary” available at https://eduteller.softaibox.com for testing purposes.
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