The Cone of Experience
Edgar Dale’s Cone of Experience, revised by Bruce Hyland, states that:
“We Learn . . .
10% of what we read
20% of what we hear
30% of what we see
50% of what we hear and see
70% of what we say
90% of what we both say and do."
Edgar Dale also states that:
“It often follows, then, that the more numerous and varied the media we employ, the richer and more secure will be the concepts we develop. Well-chosen instructional materials of various kinds can provide a variety of experiences that enhance the learning of a given subject for any student at any given point in his continuing development."
Therefore, we can conclude that the more children use sign language in their daily lessons, the more they will retain the material they learn. By speaking and signing words to your students, and having them repeat it and sign it back to you; they are hearing it, seeing it, saying it and doing it. (90% recall according to the Cone of Experience.)
You will also address many different methods of instruction at once which helps auditory, visual, and kinesthetic learners.