妹妹上三年级。
My younger sister is in third grade.
grade; year (in school, college etc)
Every character draws itself, stroke by stroke. Then grab the brush: trace it yourself and hear the word when you finish.
Nice writing!
Chinese words snap together like bricks. Every word below shares a character with this one, so you are already halfway to knowing it.
妹妹上三年级。
My younger sister is in third grade.
他是二年级的学生。
He is a second grade student.