Some people write along with watching TV. Some dull students mimic the answers of others to complete homework. Once I was crazy about writing to understand any chapter. Think a minute, writing really improves our understanding. Writing magically improves quality. The most amazing thing is that writing helps us even though we write without concentration. Let me explain it with illustration. A boy is copying answers from text book. But his concentration is towards cricket match on TV. However he can improve his quality.

Let me tell you how?
Our subconscious mind is thousands times smarter than our conscious mind. Whatever we are writing will be stored in our subconscious mind as our conscious mind is busy or off due to TV. Ultimately the stored knowledge in the subconscious mind through writing improves the quality.
Discovered by +Don Prince