Repentace must take place within
First take the bottle with the lid on it, show it to the class and say: See this bottle is really dirty. Put it in the soapy water and wash it and then rinse it, and wipe it dry. Show it to the class and ask: Why isn’t it clean? (Student choice.) Now show the second bottle, the one without a lid and say: See, it is very dirty, but…
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