Sahar, 17, an 11th grade secondary school student copies what she has learnt on YouTube onto a small whiteboard while her sister, Sewita, 19, looks on, at her home in Kabul, Afghanistan, October 19, 2021. Sahar wants to become an engineer, but, for now at least, has to learn at home as best she can. "I am trying to continue my lessons at home but nevertheless the environment at school, the classroom, our friends and teachers is something different compared to being at home." REUTERS/Zohra Bensemra SEARCH "BENSEMRA EDUCATION" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES