Two-Senses Principle

The Two-Senses Principle is a key fundamental principle of learning and of implementing accessibility. It states that information should always be conveyed via at least two of our primary senses – hearing, sight or touch. This significantly improves the absorption and understanding of content, as our brain processes and stores information presented in a multimodal way more effectively. In the event of a impairment to one sensory channel, this ensures that the information can still be perceived via the remaining senses.

Practical examples:

• Lectures: Combine the spoken word (hearing) with visual aids (sight) such as presentations, blackboard diagrams and handouts
• Videos: Subtitles (sight) and, where appropriate, audio description (hearing) for visual content
• Materials: Images with image descriptions, texts with audio versions