No, a career investigation presentation does not necessarily require a trifold board. The choice of presentation format depends on the specific requirements and guidelines given by your school, teacher, or organization.
While trifold boards are a common and practical way to present information, there are various other presentation methods you can use, such as digital presentations (using PowerPoint or other software), posters, essays, oral presentations, or even multimedia presentations. The choice of format should be based on what best suits your project's content and the guidelines provided for the assignment.