The implications in this article that strict = effective are flat-out stupid. A teacher does not have to be hardass to encourage children to have high expectations and to be OK with failure.
I think a truly effective teacher, at all levels, will encourage curiosity and creativity in subject-matter. The best way to do this, in my view, is mutual respect.
The teacher's idolised in this article seem to operate through fear, which eventually fades into a semblance of respect over time.
Praise doesn't make you a bad learner, learning in environments that encourage low expectations and stock answers to every situations probably will. Strictness might correlate with high expectations, but it sure as hell isn't the best way of going about it.
That said, I agree with a number of points in the article (some are implied from the provided data):
- Students with higher expectations perform closer to their potential (whether internal or external expectations, though other research suggests that internal motivation is far more important than external).
- There is possibly a formative stage of development where children's expectations are adjusted to their environment. Being surrounded by high expectations will correlate with high expectations with the learners.
- People who aren't afraid to fail will achieve more than those who are.
- Students who are in environments that emphasise strict route learning perform better on tests and memory exercises (spelling bees) than those who don't.
None of that really goes beyond common sense.
I'd really love for education to move beyond success = memorisation and into success = adaptability and understanding. The world rewards autodidacts because a lot of us worked this out on our own.