How Do I Reduce Cognitive Load in My Classroom?
Learning requires mental effort. The goal of good instructional design is therefore not to make learning effortless or to eliminate cognitive load. Instead, instructors should ensure that students’ limited cognitive resources are being used primarily to understand, organize, connect, and apply the material they are learning, rather than being consumed by unnecessary demands created by how that material is presented.
This is particularly important when students are learning complex or unfamiliar material. What feels manageable to an expert may be overwhelming to a novice who has not yet developed the knowledge structures that make the information easier to process.
The following are simple strategies for managing students’ cognitive load:
Course Organization
Students should not have to repeatedly figure out how your course works. Consistency allows students to develop routines and devote less attention to navigating the course itself.
Whenever possible:
- Use a consistent weekly or unit structure.
- Establish predictable patterns for assignments and due dates.
- Use consistent names for activities, resources, and assessments.
- Keep instructions and materials in expected locations.
- Communicate changes clearly rather than expecting students to discover them.
- Avoid unnecessary variation in how similar activities are completed or submitted.
Predictability does not make a course less rigorous. It removes administrative problem-solving that has little to do with the intended learning.
Canvas
A well-organized Canvas course reduces the amount of attention students must devote to finding information and figuring out what to do next. Students should be able to answer three questions easily:
- What am I supposed to do?
- Where do I find what I need?
- When is it due?
Consider:
- Organizing modules consistently.
- Using descriptive page and activity names.
- Keeping related materials together.
- Removing outdated or duplicate content.
- Minimizing unnecessary navigation between pages.
- Providing direct links to required resources when possible.
- Using a consistent naming convention for files and assignments.
- Clearly distinguishing required resources from optional ones.
- Ensuring that due dates in Canvas accurately reflect course expectations.
Assignments
An assignment may appropriately be difficult. The difficulty, however, should come primarily from the knowledge, skill, or reasoning students are expected to demonstrate, not from deciphering what the instructor wants.
Before assigning a task, ask: What do students have to figure out simply to understand what they are supposed to do?
Reduce unnecessary uncertainty by providing:
- A clear purpose for the assignment
- Explicit instructions
- Clearly identified deliverables
- Relevant evaluation criteria or a rubric
- Formatting requirements only when they serve a purpose
- Examples or models when appropriate
- Clear submission instructions
For complex assignments, consider breaking instructions into sections or providing a checklist.
Students can still encounter intellectual ambiguity within the task. In fact, clinical problems often require it. The key is to distinguish productive ambiguity in the problem being solved from unnecessary ambiguity about the assignment itself.
Break Large Assignments Into Stages
Complex assignments often require students to coordinate many cognitive processes simultaneously. Rather than assigning one large task with a distant deadline, consider creating intermediate steps such as:
Topic selection → Initial analysis → Draft or plan → Feedback → Final submission
This can be especially helpful when students are learning how to perform the task itself. Scaffolding does not mean doing the work for students. It temporarily provides structure while students develop the knowledge and strategies needed to perform increasingly complex work independently.
As expertise develops, that support can be gradually reduced.
Homework
More practice is not automatically better practice. When assigning homework, readings, question sets, videos, or other preparation, consider both the value of each activity and the cumulative demands being placed on students.
Ask:
- What is this activity helping students learn or practice?
- How much practice is necessary to accomplish that purpose?
- Is this work reinforcing an important capability or simply adding volume?
Ten carefully selected problems that require students to apply an important concept may contribute more to learning than 40 repetitive problems.
Whenever possible, prioritize activities that require students to retrieve, organize, connect, explain, or apply important knowledge.
Readings and Resources
Students, particularly novices, may have difficulty determining which information in a reading or resource deserves the greatest attention. Rather than simply assigning a chapter or article, provide some orientation:
- “Focus particularly on the mechanism described on pages X–Y.”
- “After reading, you should be able to explain why these three findings occur.”
- “You do not need to memorize the individual prevalence values. Focus on the overall pattern.”
Guiding questions or learning objectives can help students allocate their attention appropriately without removing the responsibility to engage with the material.
Lectures and Class Sessions
During instruction, avoid requiring students to process too many unfamiliar elements simultaneously. Helpful strategies include:
- Break complex material into meaningful parts.
- Activate relevant prior knowledge before introducing new material.
- Make relationships among concepts explicit.
- Simplify dense slides.
- Remove unnecessary text and decorative information.
- Avoid talking over material students need to read carefully.
- Pause periodically for processing.
- Use diagrams, comparison tables, or other structures to organize complex information.
- Clearly signal which concepts are most important.
Remember that information can be presented much faster than it can be learned. A brief pause to summarize, retrieve, predict, or discuss can give students time to organize what they have just encountered before additional information arrives.
Assessments
Assessment should create cognitive demand, but that demand should reflect the construct being assessed. Avoid introducing unnecessary difficulty through:
- Ambiguous stems or directions
- Excessively complicated wording
- Unnecessary negative phrasing
- Irrelevant information
- Unfamiliar item formats without adequate directions
- Poorly organized visual information
- Inconsistent terminology
- Avoidable navigation or technology demands
A challenging clinical reasoning question should be challenging because the clinical reasoning is difficult, not because students must untangle the question before they can reason about the case.
Deadlines & Workload
Individual assignments may seem reasonable when considered independently but become problematic when viewed collectively. Periodically look at the course calendar from the student’s perspective.
- Are several substantial assignments due simultaneously?
- Does a major examination occur immediately after a large project?
- Are students expected to complete extensive preparatory work while also preparing for an assessment?
- Could some work be distributed differently without compromising the learning goals?
This does not mean eliminating busy periods or coordinating every deadline across the institution. It means recognizing that the timing and accumulation of tasks influence students’ capacity to engage meaningfully with them.
Minimize Tool Switching
Technology can reduce cognitive load when it makes information easier to access, organize, visualize, or practice. It can increase cognitive load when students must continually learn new interfaces or move among systems.
Before introducing another technology, ask: What does this tool allow students to do that is educationally valuable?
When possible:
- Use familiar tools consistently.
- Minimize unnecessary movement among platforms.
- Provide direct links.
- Give clear instructions for unfamiliar tools.
- Avoid requiring multiple technologies when one will accomplish the task.
- Keep the technological process simpler than the learning activity it supports.
Technology should carry some of the load, not become another load students have to carry.
Instructions and Communication
Students frequently receive course information through multiple channels: the syllabus, Canvas announcements, assignment pages, email, slides, calendars, and verbal announcements. Redundancy can be helpful, but conflicting or fragmented information creates unnecessary cognitive demands. Establish a reliable source of truth for important course information.
When communicating expectations:
- Use consistent terminology.
- Put essential information where students expect to find it.
- Avoid burying important requirements in long paragraphs.
- Use headings and formatting to make complex instructions easier to scan.
- Update outdated information rather than adding another message that contradicts it.
The goal is not simply fewer words. It is less searching, reconciling, and interpreting.
Help Students See How the Pieces Fit Together
A course can contain excellent individual components and still feel cognitively fragmented. Students may experience lectures, readings, assignments, labs, and assessments as separate tasks unless instructors explicitly communicate their relationships.
Periodically make those connections visible:
- “This week’s homework gives you practice applying the mechanism we introduced today.”
- “The cases you are working through are preparing you for the type of reasoning you will need in clinic.”
- “These three assignments build toward the final task.”
Helping students understand the architecture of the course allows them to organize individual learning experiences into a more coherent mental framework.
Remember the Expert-Novice Difference
One of the greatest challenges in managing cognitive load is that experts do not experience complexity the way novices do. Faculty have extensive knowledge structures that allow them to recognize patterns, organize information, and navigate disciplinary conventions almost automatically.
Students may need to consciously process each component separately. When evaluating a learning activity, ask: How many things does a novice need to understand, remember, locate, interpret, or decide simultaneously to complete this successfully?
If the answer is “quite a lot,” determine which demands are essential to the learning objective and which can be reduced.
Conduct a Cognitive Load Audit with the TLC
Because instructors are deeply familiar with their own courses, it can be difficult to recognize sources of unnecessary cognitive load. Course structures, terminology, navigation, and expectations that feel intuitive to an expert may be considerably more demanding for a student encountering them for the first time.
The Teaching & Learning Collaborative (TLC) can work with you to conduct a cognitive load audit of your course. Together, we can review a course, module, assignment, or learning experience from the student’s perspective and identify opportunities to reduce unnecessary demands while preserving appropriate academic rigor.
An audit might examine:
- Course organization: Is the structure predictable and easy to navigate?
- Canvas: Can students readily find what they need and determine what to do next?
- Assignments: Are instructions, expectations, and deliverables clear?
- Workload: Is assigned work purposeful, appropriately sequenced, and reasonably distributed?
- Instructional materials: Do slides, readings, and other resources help students identify and organize important information?
- Assessments: Does difficulty arise from the intended knowledge or reasoning rather than unnecessary complexity in the assessment itself?
- Technology: Are students navigating more tools, platforms, or processes than necessary?
- Communication: Is important information easy to locate and consistent across the course?
- Alignment: Can students see how lectures, readings, activities, assignments, and assessments fit together?
The goal of a cognitive load audit is not to make the course easier. It is to identify places where unnecessary friction may be consuming attention and mental effort that students could otherwise devote to learning.
Interested in reviewing your course? Contact the TLC to schedule a cognitive load audit.