If you’ve ever seen students shut down in class, lose focus halfway through an explanation, or get frustrated with seemingly simple tasks, chances are their cognitive load was maxed out.
Cognitive load refers to the amount of mental effort required to process new information. When students’ brains are overloaded, learning stalls. All learners have a limited capacity for cognitive load. While the amount of cognitive load a person can handle may differ from person to person, the human cognitive architecture remains the same.
As teachers, we can make small but powerful changes to reduce unnecessary cognitive strain and reduce cognitive load for students so they can focus on understanding and applying concepts and participate in deep learning. In this blog post we are going to explore how you can set up your classroom and routines to help reduce student cognitive load and help them maximize their learning. cognitive load for students
What is cognitive load theory?
Cognitive Load Theory (CLT), proposed by John Sweller in 1988, focuses on the cognitive processes involved in learning and how the cognitive load imposed on learners affects learning outcomes.
There are three main types of cognitive load for students:
- Extraneous load → the “unnecessary stuff” that eats up brainpower (like messy slides, unclear instructions, or disjointed activities).
- Intrinsic load → the actual difficulty of the material itself (like balancing chemical equations or understanding Shakespeare). We can’t change how hard the content is, but we can break it into manageable steps.
- Germane load – the useful mental effort that contributes directly to learning. It’s the brainpower students spend building schemas. We want to MAXIMISE this, and limit to extraneous and intrinsic load to support the learning process.
Having an understanding of these different forms of cognitive load can help us as teachers plan our lessons to support students cognitive psychology by using effective teaching approaches and clearing the way for clear mental processes.
According to CLT, effective learning occurs when cognitive load is managed appropriately. High cognitive load can overwhelm learners’ working memory capacity, leading to cognitive overload and impairing learning. As teachers, we want to limit extraneous and intrinsic cognitive load, while promoting germane cognitive load for a positive impact on learning. Unnecessary cognitive load creates a barrier for learning. While there are many barriers to a student’s learning, reducing cognitive load is one we can help to manage.
cognitive load for students
Ways to reduce Extraneous Cognitive Load for students
Extraneous load is to do with unnecessary effort caused by how information is presented in a learning task. Students end up using their precious cognitive resources to decode and organise unnecessary stimulus, rather than actually learning. For example, in a classroom this might look like cluttered slides, confusing instructions, split attention, difficult to read fonts etc.
So we can reduce extraneous cognitive load and thus support student learning by:
1. Breaking down instructions into steps
Instead of rattling off a five-step set of directions, give one or two steps at a time. It is even more helpful to have them on the board. This ensures students don’t waste mental energy trying to remember what to do next.
2. Use visual aids
Pair your words with diagrams, icons, or anchor charts. For example, when teaching lab safety, show an image of goggles next to the rule. Visuals give students an extra way to process information.
Doodle notes (TM) is also a great way to help students focus their cognitive attention to what is important. Check out this blog post ‘15 powerful reasons to use doodle notes in the classroom‘
3. Limit extraneous information (clean design, uncluttered slides, no irrelevant information)
Less really is more. Keep instructional materials and presentation slides simple, uncluttered with a clean design.
Worksheets should be tidy and not include any irrelevant information.
Avoid adding “fun” but irrelevant clipart or text. Every extra element competes for students’ attention.
4. Use consistent classroom routines
Start lessons the same way, use predictable transitions, and have a clear system for handing in work. When students know what to expect, they don’t burn brainpower on figuring out the process.
I am also a huge fan of using a seating plan and pre-determined groupings for my students. This isn’t to be a buzz-kill, but rather to reduce student cognitive load. I don’t want them to come into my classroom worrying about who to sit with or if they are going to be included or excluded by their friends. It also means when its time to get into groups for labs or activities, again there isn’t the cognitive loading of working out who to go with.
5. Reduce split attention
If you’re explaining a diagram, don’t put the instructions on a separate page. Place labels and text close to the image so students don’t have to constantly shift focus. Or if it does need to be on a separate page, don’t print them back to back so they are flicking between – try and print on separate pages so they can lay them side by side. This is also true for crosswords etc as well.
6. Limit cognitive switching
There is a misconception that doing lots of different activities will increase students’ engagement in learning. While varying activities and instructional methods can be positive for learning, jumping rapidly between activities can leave students mentally scattered. Build smoother transitions and show how one activity connects to the next. This way, students stay in “learning flow.”
This includes making sure each activity is linked directly to the learning intention, and paired with an explanation as to why they are doing that particular activity.
cognitive load for students
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Ways to reduce Intrinsic Cognitive Load for students
Intrinsic cognitive load for students, has to do with the difficulty of the actual content. While we still have to teach what the syllabus tells us to, we do have control over how this is done.
7. Chunk information
Break lessons into smaller “chunks” of content with practice or discussion in between. For example, rather than teaching all the types of chemical reactions in one hit, teach one chemical reaction type, check for understanding, then move on.
8. Scaffold tasks
Utilise scaffolding such as sentence starters, step by step hints, organisers, and formula sheets can help reduce cognitive load for students. Slowly phase these out as students develop independence. Scaffolds act like training wheels for challenging material.
9. Model thinking aloud
Work through a problem on the board while narrating your thought process. This makes hidden steps visible and shows students how experts approach complex tasks.
10. Provide worked examples
Before expecting independent problem-solving, show a complete example. Walk through the steps and highlight the reasoning. Then gradually remove support as students grow more confident.
11. Check for understanding frequently
Don’t wait until the end of class to find out students are lost. Use exit tickets, mini whiteboards, or quick polls to spot confusion and adjust before moving on. This also reduces student cognitive load as they don’t waste energy solidifying a misconception or incorrect process.
12. Teach vocabulary explicitly
New terms often create barriers. Introduce key words before diving into complex content. Use visuals, examples, and quick recall activities to anchor them in memory. Anchor charts and word walls can also be helpful, however you want this to be as straight forward as possible – too many displays or chaotic displays can also contribute to cognitive load for students.
13. Provide advance organisers
Start lessons with an overview, mind map, or guiding questions. This gives students a framework for what’s coming, so new information has somewhere to “fit.”
cognitive load for students
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Cognitive load for students is like a classroom backpack: when it’s overloaded, students stumble. By cutting away unnecessary weight (extraneous load) and organising the essentials more clearly (intrinsic load), we give students the space they need to actually learn.
The best part? Reducing cognitive load for students with these strategies don’t require reinventing your teaching. There are small tweaks that we can do to our existing methods to help students focus their mental energy where it matters most.
cognitive load for students
