World history can look at the big picture. Instead of zeroing in on what happened in select states or regions during a historical period, it often examines what occurred globally. The emphasis of this field of study may be on the themes and patterns that have shaped the planet.

A-levels are tests students in the UK take to gain entrance into university. Each test covers a different subject, and a student’s score can help him or her choose an area for advanced study.

Part-time learning allows one to obtain a degree or qualification even if one cannot attend school on a full-time basis. One can learn at one's own pace, gradually accumulating credits that count towards a final qualification.