In 1999 Betty obtained a secondary teaching qualification for Dutch from the Faculty of Education in Amsterdam, specialising in Dutch as a Second Language. She taught Dutch at various schools in Turkey, Japan, China, The Netherlands and Singapore. Betty founded the Stichting Nederlands Onderwijs (Dutch Education Foundation) in Istanbul and professionalised the curriculum. She was examiner for the CNaVT-exam in several countries. As from August 2016, Betty works at the International School of the Hague as IB-Dutch teacher in the MYP-programme.