A community of practice is a group of people who share a craft or a profession. The concept was first proposed by cognitive anthropologist Jean Lave and educational theorist Etienne Wenger in their 1991 book Situated Learning. Wenger then significantly expanded on the concept in his 1998 book Communities of Practice. Wikipedia

Moodle has the ability to automatically track when students have completed certain activities based on customizable criteria. It can also automatically evaluate the completion of a course based on configurable activity completion criteria.

This is the center area of a web page. It is the part of the page which is different from one page to the next. It typically appears below the header, above the footer and occupies most of the area in between these sections. Sometimes there may be a narrow sidebar which appears to the right and/or to the left of the content area.

Cascading Style Sheets is a style sheet language used to control the presentation of a HTML document. CSS is one of the trio of cornerstone technologies used to create all Web pages along with HTML and JavaScript