I have regularly been offering courses at the Deutsche Junior-/Schülerakademie:
2024: The magic of solving or insolubility of (algebraic, Diophantine, differential) equations; with Wasilij Barsukow
2021: Elliptic Curve Cryptography; with Joanna Meinel
2018: Knots in theory and practice; with Wasilij Barsukow
Talks/Colloquia:
2024: Kleine Sätze und große Geheimnisse, Tag der Mathematik, Heidelberg; slides.
2024: Mathematisches Kolloquium, Heidelberg
2019: Trinity Mathematical Society Centenary Symposium, Cambridge
2018: Trinity Mathematical Society Symposium, Cambridge
2017: PhD colloquium, Cambridge