expression, noun, adverb
childhood; when one was a child
Refers to the time of one's childhood; often used adverbially as 'in my/one's childhood' or as a noun phrase.
子供の頃、よくこの公園で遊んだ。
I often played in this park when I was a child.
彼は子供の頃の思い出を話した。
He talked about his childhood memories.
Very similar in meaning, but 小さい頃 emphasizes being small/young, while 子供の頃 explicitly says 'child'.
Compound of 子供 (child) + の (possessive particle) + 頃 (time, about). A straightforward phrase meaning 'the time of being a child'.