Greetings for Ending a Class

Here is a list of (closing) greetings taken from the Sho-Gakko Gaikoku-go Katusdo Kenshu Guidebook by the Japanese Ministry of Education.

今日はこれで終わります． That’s all for today.
今日の授業は楽しかったですか． Did you enjoy today’s class?
また次回会いましょう。 See you next time.
気を付けて。 Take care.
さよなら。 Good-bye./See you.
また（月曜日に／来週）会いましょう。See you (on Monday/next week).
良い週末を。 Have a nice weekend.