What is the main purpose of an educator previewing a video or DVD before showing it to students?

The main purpose of an educator previewing a video or DVD before showing it to students is to ensure that the content is engaging and can spark interest and motivation among the learners. This step is crucial because a video that is stimulating not only captures the audience's attention but also enhances the overall learning experience. When educators select materials that are both relevant and exciting, they are more likely to foster an environment conducive to learning, encouraging discussion and participation among students.

While considering other aspects, such as the video's educational content, production quality, and length, is important, the immediate goal during a preview is to assess how well the video can engage students. An engaging video promotes curiosity and facilitates learning, making it a key reason for an educator to thoroughly preview the material before introducing it to the class.