8週2日目 そういえば…
Connecting words and organizing arguments
接続：それはそうと、文。
That's true, but let's move on to something else
注意 / Note：そういえば recalls from the current topic; ところで completely changed the topic; それはそうと put the previous matter aside.
比較 / Compare：Same song: そういえば／ところで. These models are often mistakenly chosen for each other — carefully read the 接続 and nuances above and then decide.
よく出る形 / Common form：それはそうと、文。Acknowledge what is being said before moving on — softer than ところで because it acknowledges the other person first.
それはそうと、宿題は終わったの。
Let's not talk about that, is the homework done yet?
それはそうと、今日の予定を確認しよう。
That aside, let's confirm today's schedule.
それはそうと、体の具合はもういいのですか。
Anyway, is your health okay?