Here is some good mission prep counsel from Russell T. Osguthorpe, Sunday School General President. This is an excerpt from his October 2009 General Conference talk, Teaching Helps Save Lives.
“When I was in my teens, a recently returned missionary named Brother Peterson taught our Sunday School class. Every week he would draw a large arrow from the lower left-hand corner of the blackboard pointing to the upper right-hand corner. Then he would write at the top of the blackboard, “Aim High.”
“Whatever doctrine he was teaching, he would ask us to stretch ourselves, to reach a little higher than we thought was possible. The arrow and those two words, aim high, were a constant invitation throughout the lesson. Brother Peterson made me want to serve a good mission, to do better in school, to set my sights higher for my career.
“Brother Peterson had a work for us to do. His goal was to help us “think about, feel about, and then do something about living gospel principles.” His teaching helped save my life.
“At the age of 19, I was called to serve a mission in Tahiti, where I had to learn two foreign languages—French and Tahitian. Early in my mission, I became very discouraged at my lack of progress in either language. Every time I tried to speak French, people responded in Tahitian. When I tried to speak Tahitian, they answered in French. I was on the verge of giving up.
“Then one day, as I was walking past the laundry room at the mission home, I heard a voice calling me. I turned around and saw a gray-haired Tahitian woman standing in the doorway motioning for me to come back. Her name was Tuputeata Moo. She spoke only Tahitian. And I spoke only English. I missed much of what she was trying to tell me, but I did understand that she wanted me to return to the laundry room every day so she could help me learn Tahitian.
“I stopped by daily to practice with her while she ironed clothes. At first I wondered if our meetings would be of any help, but gradually I began to understand her. Each time we met, she communicated to me her complete confidence that I could learn both languages.
“Sister Moo helped me learn Tahitian. But she helped me learn much more than that. She was really teaching me the first principle of the gospel—faith in the Lord Jesus Christ. She taught me that if I relied on the Lord, He would help me do something I thought was impossible. She not only helped save my mission—she helped save my life.”