The analysis began on a general level with the verbatim transcriptions of the interviews and video recordings by repeatedly reading them as a whole and by getting to know them as a collective—following a typical variation theory approach to data analysis (Marton, 2014). The analysis then continued with a focus on systematic identification of parts of the transcripts, enabling a transformation into a set of units that made it possible to organize the differences between lessons 1 and 2 in a thematic way.