When I teach, I try to apply the law of witnesses: "in the mouth of two or three witnesses shall every word be established," (See D&C 6:28, 2 Corinthians 13:1, Deuteronomy 19:15, 2 Nephi 29:8, Matthew 18:16) to my Lesson preparation. The idea is that as teachers, we're always looking for "witnesses" to the word. […]