How important are teaching assistants in large science and engineering classes?
Teaching assistants can be quite important in large science and engineering classes. They may support exercises and laboratory work, answer questions, provide feedback on assignments, and help with individual support and safety matters that an instructor alone may find difficult to cover. However, the number of TAs, their responsibilities, and the quality of their support vary by course, department, and university; having TAs does not automatically make learning support more extensive.
Key points
- TAs can provide individual help and support during exercises or laboratory work when one instructor cannot assist everyone.
- In practical classes, they may help students follow procedures and work safely.
- TAs supplement rather than replace the instructor, who normally remains responsible for course design and overall teaching.
Things to check
- The number, duties, training, and level of involvement of TAs vary by university, department, and course, so specific arrangements should be checked in the syllabus or official university information.