Improvisation and Language Learning: Leaky Grammar | TELT |

“Improvisation can be considered the fifth skill — the skill which follows reading, listening, speaking, and writing. In many ways, it is the most important because it is the real test of whether students can use what they have learned without being told exactly what to do or say."

Maurer, Jay. (1997). Presentation, Practice, and Production in the EFL Class. The Language Teacher, 21 (9), 42-45.