"Students learn more when they construct learning experiences for others.
You might be familiar with the "learning pyramid" which states that students
remember 10% of what they read, 20% of what they hear, 30% of what is
demonstrated to them, 50% of what they discuss, and 75% of what they
practice. That same pyramid states that students retain 90% of what they
teach others. You can check the learning pyramid at:http://homepages.gold.ac.uk/polovina/learnpyramid
From: Moodle 1.9 Teaching Techniques by William Rice and Susan Smith Nash, p. 10.