Grethen is from Pärnu, Estonia. She completed her BA in Education (Special Education) at the University of Tartu in 2014. Soon after, she received an MA in Education (Honors) in Special Education and Counselling from Tallinn University. During her studies, she participated in the Erasmus program and studied Special Educational Needs and Inclusion at the University of Northampton in the UK for one academic year.
Grethen has extensive experience working with students on the Autism Spectrum, with ADHD and with emotional and behavioral difficulties. As a special education specialist on a rehabilitation team in a medical facility, she gained valuable experience working with students with various other special needs.
In her free time, she enjoys singing in the NUKU theatre choir, reading and spending time outdoors.