The document discusses second language acquisition from a dynamical systems perspective. It provides an analogy that observing first language acquisition is like studying gravity by dropping feathers, while observing second language acquisition is like observing a feather dropped from an airplane, affected by various environmental factors. It emphasizes that acquiring a second language is more complex than a first language due to these diverse environmental conditions influencing human learning. The document also reviews literature on innovative programs for teaching English to non-native speakers in elementary schools and teacher preparation patterns.