Cognitive Load
Cognitive load is the amount of mental effort learners use to process information. Good learning design manages that load so learners can focus on what matters without becoming overwhelmed.
Cognitive Load
Learning Uses Mental Bandwidth — and That Bandwidth Is Limited
Cognitive load is the amount of mental effort learners use while processing information.
When a learning experience asks learners to process too much at once, they may struggle to understand, remember, or apply what matters.
The Same Content Can Create Very Different Mental Demands
Complexity, prior knowledge, presentation, and distractions can all affect how much effort a learner needs to make sense of something.
We cannot remove all difficulty, nor should we. The goal is to remove unnecessary difficulty while supporting the thinking the task actually requires.
Cognitive Load Is Often Discussed in Three Parts
These categories can help designers think about where the learner's mental effort is going.
Effort
Remove Anything That Competes With the Learning
Decorative elements, repeated information, unnecessary animation, and confusing layouts can all demand attention without helping learners perform.
Help Learners See What Matters
Reducing content is only part of the solution. Use design cues to direct attention toward the information learners need at that moment.
Control How Much New Information Arrives at Once
Complex learning becomes easier to process when learners can build understanding in a sensible sequence instead of receiving everything at once.
Before You Add More, Ask What the Learner Is Already Processing
Review the experience from the learner's point of view, especially if the topic is unfamiliar or the task is already complex.
If the effort is caused by clutter, confusing navigation, unnecessary information, or poor organization, redesign the experience.