Include some optional or alternative units that deal with student special interests. Provide for varying learning styles. Set goals and standards in a realistic and supportive way. Challenge, but do not threaten. Inner satisfaction is often the greatest motivator.
Positive comments stimulate learning more effectively than do negative ones.
Promptly return evaluated tests, papers and projects. Make certain that negative feedback is a comment on the performance and not directed at the person. Focus on students' continued improvement. Help students set realistic goals so that success is more likely. Stress understanding more than memorization of facts.