A popular scholarly introduction to the subject (Vanderbilt): https://cft.vanderbilt.edu/wp-content/uploads/sites/59/Active-Learning.pdf

Introductory resources from other Universities (EN): 

University of Michigan: http://www.crlt.umich.edu/active_learning_introduction

University of Cambridge: https://www.cambridge-community.org.uk/professional-development/gswal/index.html

Teaching & Learning Leiden: https://www.teachingandlearningleiden.nl/

Short Clip by ICLON on Active Learning: https://video.leidenuniv.nl/media/t/1_w7jzyhy8/42960862

Some tools available for voting in class: https://www.medewerkers.universiteitleiden.nl/onderwijs/ict-en-onderwijs/werkvormen-en-tools/activerend-leren-met-interactie-tools/interfacultaire-instituten/iclon?cf=bestuursbureau-expertisecentra

Prince, M. (2004) Does active learning work? A review of the research. Journal of Engineering Education 93 (3) 223-231. https://doi.org/10.1002/j.2168-9830.2004.tb00809.x

Freeman, S., Eddy, S.L., McDonough, M., Smith, M.K., Okoroafor, N., Jordt, H., & Wenderoth, M.P. (2014). Active learning increases student performance in science, engineering, and mathematics. Proceedings of the National Academy of Sciences 111 (23) 8410-8415. https://doi.org/10.1073/pnas.1319030111

Deslauriers, L., McCarty, L.S., Miller, K., Callaghan, K., & Kestin, G. (2019) Measuring actual learning versus feeling of learning in response to being actively engaged in the classroom. Proceedings of the National Academy of Sciences Sep 2019, 201821936; https://doi.org/10.1073/pnas.1821936116 

Hake, R.R. (1998) Interactive-engagement vs. traditional methods: A six-thousand-student
survey of mechanics test data for introductory physics courses. American Journal of Physics. 66, 64–74.

Carr, R., Palmer, S., and Hagel, P. (2015). Active learning: the importance of developing a comprehensive measure. Active Learning in Higher Education 16, 173-186

Ruhl, K., Hughes, C.A., and Schloss, P.J. (1987). Using the Pause Procedure to enhance lecture rcall. Teacher Education and Special Education 10, 14-18.

Fraser, J.M., Timan, A.L., Miller, K., Dowd, J.E., Tucker, L., and Mazur, E. (2014) Teaching and physics education research: Bridging the gap. Reports in Progressive Phyiscs (77) 032401.