Which of the following is the biggest issue facing instructors who want to use multimedia?

Determining when it's appropriate to use multimedia is indeed a significant concern for instructors. This issue encapsulates the necessity for instructors to align multimedia usage with pedagogical goals and the specific needs of their students. Employing multimedia can enhance the learning experience, but it remains crucial to assess if it genuinely supports lesson objectives or if it may distract from the core content.

The appropriateness of multimedia also requires understanding the context of the lesson. Instructors must consider factors such as the complexity of the subject, the learning environment, and students' backgrounds. This ensures that multimedia tools are not merely added for their own sake but are effectively integrated to enhance understanding.

While the cost and technological readiness of both students and instructors are pertinent considerations, the efficacy of multimedia usage hinges on the timing and context of its implementation, which ultimately impacts learning outcomes. This distinction emphasizes why determining appropriateness stands out as the foremost issue for instructors looking to leverage multimedia in their teaching strategies.