School Subjects with O

• Orchestra

  Music ensemble class offered in many schools.

• Oceanography

  Science of oceans; offered as school courses.

• organic chemistry

  Chemistry branch; taught in many schools.

• Oncology

  Medical specialty studied in medical school.

• Opera

  Music/theater art; courses exist in schools.

• Optometry

  Health science subject in optometry schools.

• Ornithology

  Bird biology; a real course in schools.

• Ontology

  Philosophy topic; taught at universities.

• Orienteering

  PE/outdoor navigation unit taught in schools.

• optics

  Physics of light; a standard school topic.

• Orthopedics

  Medical field with courses in medical schools.

• Oratory

  Public speaking/rhetoric class in schools.

• outdoor ed

  Short for Outdoor Education, a real subject.

• occupational therapy

  Health science subject about rehab and daily living skills.

• orthography

  Study of correct spelling; part of language classes.

• Annonce
• Oral Communication

  Common speech class focusing on spoken skills.

• oil painting

  Art class focusing on oil painting techniques.

• Ocean studies

  Fits as an Earth/Marine science style school course.

• oral reading

  Elementary literacy class focused on reading aloud.

• oral history

  History elective on recorded personal narratives.

• Oriental Studies

  Language/culture field; some schools offer this.

• Oral speaking

  Oral speaking can be taught as a communication class.

• Open Study

  Study period/free supervised work time in timetable.

• Online learning

  Mode of delivery, but many schools list it as a class.

• Old English

  Historical form of English, often elective in HS.

• Opera singing

  Vocal music course focusing on opera repertoire.

• Ohio history

  State history course, like “Ohio history” in US schools.

• Ottoman Empire

  History course on the Ottoman Empire, often in HS.

• organic science

  A school science course covering living systems 🌱

• oral language

  Class on speaking skills, esp. in early grades.

• Operations management

  A standard business and vocational course 📊

• Old World History

  History survey on pre‑modern world, common in schools.

• Olympic sports

  A physical education course about competitive sports 🏅

• Ocean science

  High‑school style marine topic, often as ocean science

• organic biology

  A biology course focused on living systems and nature.

• opera class

  Music elective studying opera pieces and singing.

• Oceanic studies

  An ocean-focused science or geography elective 🌊

• Oboe lessons

  Music class focused on learning to play oboe.

• Old literature

  A literature class studying older works and texts.

• Occupational Health

  A vocational class covering workplace health and safety.

• Office management

  Vocational subject on running office work

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