Why It Matters
Whether you're producing videos for an online course, sharing a photograph with students, building a slide-based presentation, or creating any type of multimedia presentation, there are a few key principles to keep in mind while building your content.
Our Recommendation
Based on the work of Richard Mayer1, we recommend focusing your use of multimedia by concentrating on three goals:
- Reduce noise
- Clarify complexities
- Build meaning
The following sections outline how to accomplish each goal.
1. Reduce Noise
Learning is hard – don't make it harder. These first principles will ensure that you're not placing an unnecessary load on the learner's cognitive processes.
| Principle | Description |
|---|---|
| Coherence | Carefully consider whether each multimedia component is necessary to meet the desired learning outcome. Bad Example: Includes unnecessary photographs, font styles, and on-screen text.
Good Example: Removes extraneous graphics and text.
|
| Signaling | Highlight essential material. Bad Example: As the narrator describes a specific step within the Project Management process, the entire process displays on-screen.
Good Example: The specific step that the narrator is discussing is highlighted, focusing the learner's attention on the most essential material.
|
| Redundancy | Limit multimedia to narration and animation when possible, avoid including redundant on-screen text. Bad Example: The narrator reads the on-screen text verbatim.
Good Example: On-screen text is minimized and the narrator provides detailed content.
|
| Spatial Contiguity | Display corresponding words and pictures near each another. Bad Example: The words are listed along the left side, separate from the image on the right.
Good Example: The words are listed alongside their corresponding portion of the image.
|
| Temporal Contiguity | Sync corresponding visuals and audio. Bad Example: The narrator describes the steps, then a short video demonstrates the process.
Good Example: The narrator describes the steps as a short video demonstrates the process.
|
2. Clarify Complexities
Trying to explain the unexplainable? These principles outline ways to clarify content that is particularly complex.
| Principle | Description |
|---|---|
| Segmenting | Allow the learner to control the pace of multimedia presentations. Good and Bad Examples:
|
| Pretraining | Provide an opportunity for learners to learn basic, prerequisite content before launching a more complex multimedia presentation. |
| Modality | When possible, use graphics with spoken text rather than graphics with written text. On-screen text requires split attention between graphics and text. |
3. Build Meaning
Are you such a good instructor that your learner has brain power left over? If so, help them build their own meaning.
| Principle | Description |
|---|---|
| Multimedia | Present words and pictures rather than words alone. Good and Bad Examples:
|
| Personalization | Use a conversational tone rather than a formal tone. |
- Mayer, R.E. (2008). Applying the science of learning: Evidence-based principles for the design of multimedia instruction. American Psychologist, 63(8), 760-769.
