The author simply explains why the scientific method doesn't really work in real life and shows you how to change up your lessons to include the parts of the scientific method but using the teachings of the nature of science.
Here is another article discussing the right and wrong ways to teach scientific method to students. Again, I think it is important for teachers to thoroughly understand how the scientific method works in practice in order to help their students move forward in their own experiments.
These four fun videos are a little bit on the silly side, but most middle school students do like some "corny" additions to their lessons. A bonus is that the sing-a-longs will help the students remember the definitions and steps used. Each video comes with a follow-up quiz as well. You could use these in centers or as a fun homework assignment, too.
This is a very interesting article that will help you (and your students) understand how scientists might actually use the scientific method by putting the steps in different orders. I think this would be a great article for any teacher to consider for use in his or her class.