Popular culture portrays science as being beyond the understanding of the non-specialist. Science teachers must overcome this barrier. Also, science educators have to address the fact that many students have preconceived and often incorrect notions about the material. These misconceptions have to be proven false before proper learning can begin. The teacher must work to make the material interesting to both the students and lecturer alike.
Enthusiasm is the best motivator that a student can have.
A recitation of the facts rarely conveys the flavour of the subject area. Simple class exercises, where the students partake in discovery, are beautiful pedagogical tools. In the physical sciences one has at least two approaches to any concept - that which uses mathematics and that which does not. Both are of equal importance. While the mathematics provide us with a powerful predictive tool, a description using words and diagrams shows real knowledge.