Since May 2023, Lena S. Jaeger is a PhD Student at the IDM (Institute for the Didactics of Mathematics) in Bielefeld, Germany, in the field of (early) mathematical education - suppervised by Prof. Dr. Miriam M. Lüken. Prior to this, Lena completed her Bachelor of Arts at Wuppertal University and her Master of Education at Bielefeld University in Primary School Education.