Reading improves vocabulary and leads to more highly developed language skills.
In schools these days teachers are having to spend much of their time preparing students for batteries of standardised tests. I, for one, am glad I am no longer a classroom teacher.
I would find it extremely difficult to teach that way. My beliefs about how children learn do not coincide with those of the current powers that be.
I believe that children learn best when they are having fun, enjoying the challenge of the learning experience. I believe they learn quickly and easily when the learning experience is set in narrative. I used stories as the base for my teaching units. My core belief that stories provide children with a means of engaging with, and forming deeper understanding of, the world around them proved most successful in encouraging learning.
We learn new words as we read. We unconsciously absorb information about those words, how they are spelt, how authors structure interesting sentences with those words. This is how we learn to write more effectively.
Test time magic.