It is not mandatory to give students grades until they are in the 8th grade. Finnish schools assign little homework, because it is assumed that mastery is attained in the classroom.
Finland’s education system was a place of refuge — one where children could be children and laugh and play and still learn all at the same time.
“Learning is supported by a peaceful and friendly working atmosphere…and a calm, peaceful mood. There is no mention of rigor, pushing students, or demanding more. Students and teachers don’t wear shoes indoors, and the classroom is a place of peace.”