One of the best ways to find out whether we truly understand something is to try to teach it to someone else. Most of us have had the experience of explaining a concept only to realize halfway through that there was a gap in our own understanding. On the other hand, preparing to teach a lesson often helps us organize our thoughts, connect ideas, and gain a much deeper understanding of the topic ourselves. As adults, we benefit from this process all the time. Teachers, coaches

When hauling horses, I will often see a car pass with a little girl in the back seat, her face pressed against the window, eager for a quick glimpse of the horses in the trailer. Or at a gas station, some mom will approach and sheepishly ask if her child can pet the horses whose windows I have opened. I was that child. I had a 1½-hour school bus ride in the country, and I can still tell you every horse that was on the route. My daughter's experience was very different. I was