Arithmancy was an elective subject offered from the third year on at Hogwarts School of Witchcraft and Wizardry. During the 1990s at least, the class was taught by Professor Septima Vector in Classroom 7A, on the Castle's seventh floor. Homework assignments, which included writing essays, required the consultation and/or composition of complex number charts. Little else is known about the class, but the study of Arithmancy has been described as "predicting the future using numbers," with "bit of numerology" as well.

Moderator: Hermione Granger

Care of Magical Creatures is an elective course at Hogwarts School of Witchcraft and Wizardry that can be taken by students Third year and above. In the class, students learn about a wide range of magical creatures, from flobberworms to Fire crabs, and even unicorns and thestrals. Students are taught about feeding, maintaining, breeding, and proper treatment of these various creatures.

Moderator: Hermione Granger

Divination is a subject taught at Hogwarts School of Witchcraft and Wizardry. It teaches methods of divining the future, or gathering insights into future events, through various rituals and tools. The magic taught in this class, as well as the ability to say prophetic things is a branch of magic referred to as "divination."

Moderator: Hermione Granger