What is it?
Reducing cognitive load means designing instruction, materials, and environments so learners can focus their mental effort on the information and thinking that matter most. Unnecessary information, complex directions, cluttered materials, competing sensory input, or demands on memory can use cognitive resources that might otherwise be available for learning. Reducing cognitive load does not mean reducing the learning goal or making content less rigorous; it means reducing barriers that are not essential to the goal.
How to use it?
Consider what learners are being asked to remember, process, organize, and attend to during an activity. Simplify unnecessary language, remove visual clutter, break information into meaningful sections, highlight essential content, and provide information visually or in multiple formats when helpful. External supports such as examples, checklists, visual directions, reference materials, and models can reduce the need to hold information in working memory. Focus on simplifying access to the task rather than automatically simplifying the task itself.
Why use it?
Working memory and attention are limited resources, and learners vary in how much information they can efficiently process at one time. When unnecessary demands compete with the learning goal, learners may become overwhelmed, miss important information, or have difficulty demonstrating what they know. Reducing cognitive load can improve access, comprehension, persistence, and independence while preserving meaningful challenge and high expectations.
