when I was in elementary school
小学校の時、ベルベル語の授業があったよ。
When I was in elementary school, we had Berber classes.
私のフランスケーキ好きは小学校の時からです。
I've loved French cakes since I was in elementary school.
「小学校の時さ」→
Back in elementary school, you know…
— 映画 聲の形 (2016)
この本はね、小学校の時に読んだよ。
I read this book back in elementary school.