I believe that its neither practical nor informational courses which by itself can provide sufficient knowledge. Its always a right balance between the two which can impart great skills into a student. For example if we do litmus test experiment in chemistry without understanding what are acid and what are bases and how they regulate chemical reaction its of no use even if you know how to carry the experiment. One other expect is its always easy to understand practicals if we have a theoretical background of it before performing the practical. So I think its not only practical or only theory that will make a course a perfect one which can readily be implemented by student in industry.