Let's go over what we did today at the end of this class.
Let's briefly check before the end of today what we covered during this class.
ご質問ありがとうございます。
① "Let's go over what we did today at the end of this class."=「この授業の終わりに、今日したことを振り返りましょう。」
② "Let's briefly check before the end of today what we covered during this class."=「この授業でしたことを授業の終わりの前に手短に確認しましょう。」
ご参考になると幸いです。