One advantage of the coursework option is that the assessment is done during the course, well before the examinations at the end. By the time your students reach their examinations, the practical assessment is one thing less to worry about. A second advantage is that you are free to choose what experiments you want your students to do in their assessments, to suit the local conditions and resources in your school. Some teachers feel that coursework is a fairer assessment because it does not depend on performance on one day. Perhaps the greatest advantage is that it is motivating for students. The encouragement and interest generated by successful coursework, coupled with being able to see how they are progressing in their achievements throughout the course, both tend to inspire candidates to greater effort and achievement.