Results of teacher-evaluations (online surveys) of learning outcomes for pupils 13–20 years of age participating in the open online course EDU-ARCTIC (2016–2019).

Results pertain to the teacher’s collective assessment of the pupils in their class. N = 255 (46% of all active) teachers with 25,398‬ pupils in the pre-survey, and 73 (13%) teachers with 3,428 pupils in the post-survey. Scores (means ±1 SE) denote levels of skill/learning goal among the pupils, on scales 1–4 or 1–5, where 1 = lowest and 4 or 5 = highest. Questions marked with § comprise merged questions that asked for similar information, after testing each merged question separately and finding that they yielded similar results. Bolded questions = significant difference between pre- and post-survey.