In Mathematics and other science subjects, coursework assignments are
usually accompanied by model solutions which are released to students
after the due date, and to markers beforehand. This plugin allows
teachers to upload these solution sheets as files, e.g., in PDF format,
to the Moodle Assignment activity.
Solutions are initially hidden to students, and the teacher can release them either manually, or at a specified time after the due date. Futher, they can automatically be made unavailable after a configurable date.