EN
The study summarizes the experience of the team that developed the HistoryLab digital application for working with sources (during 2016–2021) that included authors of this text. Analytical data and experience from the ongoing verification of educational software are used to reflect on a key problem of historical education in the Czech Republic: the tension between didactic theory and pedagogical practice. In conclusion, the authors propose three models of perceptual transmission of theory based on verification in school practice.