Learning English and Learning About English?
We are learning English,not about English. A student can know all about English. And he may not be able to speak English.
The people who only learn about English take English as a subject. This is a mistake. Geography is no skill while English is.
You learn to swim by getting into water and swimming.You learn football by kicking a ball. We learn to speak English by speaking English. Let us do more speaking if we want to learn English well.
So you see there is a difference between "learning English and learning about English". Now we want to learn English and we believe the best way to learn to speak English is by speaking.