We've all seen some sort of numbers or graphics depiction about how we retain what we learn. The story goes that we retain 5 percent of what we see/hear, 10 percent of what we read, 20 percent with a visual, 30 percent with a demonstration, and so on. The problem is - this is a fabrication. There actually hasn't been any good research studies on the effectiveness of different delivery modes in education to come up with these percentages. Although there are precious few studies that have focused on learning retention rates when the delivery mode was changed, there are some things that we do know that influences learning retention rates. Read this article to explore those influences.