A written project plan submitted by the end of the first three weeks of semester (1 page, 300 to 700 words; 10%); a written scientific report totalling up to 2000 words due at the end of semester (40%); evaluation of contribution by group members (10%); reviews of written and spoken work by peers, during the semester (3 reviews totalling up to 2500 words; 25%) followed by a rejoinder to reviewer comments (500 words, 5%); and a 10-minute oral presentation towards the end of semester (10%).