Literature reviewHighlights Literature has been inconsistent in defining teachers' informal learning. The present article suggest a theoretical common definition. No best practice has been established for the measurement of informal learning. The article give advice on measurements use and suggest some innovative methods.
Lecat, A., Spaltman, Y., Beausaert, S., & Raemdonck, I. (2020). Two decennia of research on teachers’ informal learning: a literature review on definitions and measures. Educational Research Review, 30(100324). https://doi.org/10.1016/j.edurev.2020.100324 (Original work published 2020)