The science of learning
Last week I attended a one-day workshop entitled The Science of Learning, which was facilitated by cognitive neuroscientist Dr Itiel Dror of Southampton University. Itiel is becoming a bit of a celebrity amongst the e-learning community in the UK as someone who avoids the grand theories of learning and concentrates instead on practical tips based on what we know about the brain and how it works (assuming we really do and this I must place on trust).
Anyway, I thought it would be useful for me to clarify what I took away from the workshop (which may or may not be what Itiel intended), as an opportunity for my own reflection and for others to challenge. So here we go:
- The brain is a machine with limited resources for processing the enormous quantity of information received by the senses. As a result, attention is extremely selective and the brain must rely on all sorts of shortcuts if it is to cope effectively.
- Teachers/designers can adopt two strategies to reduce the risk of learners experiencing cognitive overload: provide less information (quantitative approach) or take much more care about how this information is communicated (qualitative approach).
- It is easier for a person to focus their attention on the desired point if there is minimal noise (other information) surrounding it. Reducing noise also reduces context, so a balance needs to be struck.
- Overload can be reduced by grouping items/steps (what Itiel calls 'chunking'). Grouping can be accomplished by placing people/objects/events into categories, or by compressing a number of procedural steps into one, automatic action. Visually you meay separate items by space, size or colour. Learners will naturally employ grouping as a strategy, although they may do this inappropriately and the process requires effort. Better for the designer/teacher to present material ready grouped.
- A side effect of grouping is that once the action is completely familiar (that old 'unconscious competence' phase), the individual finds it hard to explain how they do it; they lose control over the process because it has become automatic (so old hands may not always be the best teachers?). Grouping is essential to our functioning, but there are obvious dangers, i.e. unhelpful stereotyping.
- Individuals use top-down processing to reduce overload. This draws automatically on their past experience of the particular context, existing knowledge and intelligence and avoids them having to evaluate all new information from the bottom up. An example would be how people can easily read a sentence in which the letters in each word are jumbled up.
- Designers/teachers need to take account of the way in which the information is likely to be encoded and processed - it's not 'what you teach' but 'what is learned'.
- Different parts of the brain specialise in different tasks. Individuals can engage in more than one task at the same time, as long as each uses a different part of the brain.
- It's a myth that we only use 5-10% of the brain - we use it all.
- The brain continues to change throughout our lives, even though we stop adding new brain cells in our early 20s. Some parts of the brain are relatively hard-wired (through nature or nurture), some very plastic. It makes sense to concentrate in recruitment on finding those people with hard wiring which suits the job, because no amount of training will sort the problem out later. (Itiel did not go into detail about those capabilities which tend to be hard-wired and those which are more plastic - this is clearly important.)
- As you grow older the hard-wired capabilities persist - the most learnable capabilities go first.
- Language is more than just a means for expressing thought - in many ways it is thought. If a person is not exposed to any language in early years, then by the age of seven they are incapable of learning it.
- The two sides of the brain really do have different functions (I thought this was just pop psychology). The left brain concentrates on language and analytical skills; the right has the spacial abilities. The left side of the brain controls the right side of the body and vice versa. The left and right sides of the brain do not interact physically.
- The size of a person's brain is not an indicator of intelligence.
- 20% of your blood is in the brain.
- You never lose anything from long-term memory, just the ability to retrieve it. Retrieval is a function of how you encode memories / the number of links you provide.
- Working memory consists of 7+/-2 items (again I thought this was pop psychology).
- To reduce cognitive overload, take out every word or picture that is not necessary or relevant to your learning goals. Even then, don't deliver more than the learner can handle (presumably by modularising the learning).
- Provide the learning when it is needed, not before.
- Be consistent in the manner of your presentation, e.g. the interface.
- Be consistent in the level of your presentation, i.e. not too complex, not too simple. Try to work with homogeneous groups; better still personalise the learning.
- Engage the learner by grabbing their attention, allowing them to determine their progress, providing constructive feedback, introducing an element of excitement/surprise.
- Be careful of allowing the learner too much control over the learning process if they don't have the metacognitive skills, i.e. they don't know what they know and what they don't know, nor how best to bridge the gap. Ideally help learners to increase their metacognitive skills, i.e. learning how to learn.
- Providing the learner with control over pace and allowing them to go back and repeat any step is important.
- The learning benefits by being challenging. Performance targets, rewards and competition can increase the degree of challenge, perhaps through the use of games.
More importantly, how useful is this material? Can it help us to design better learning materials and experiences? Can it help us to become better learners? What do you reckon?
Labels: instructional design






13 Comments:
Intesting ideas on the cognitive processes involved in learning acquisition.
Thanks for the post.
Actually, short term memory is probably 4 +/- 1 chunks.
http://www.bbsonline.org/documents/a/00/00/04/46/index.html
Great post Clive, you must have been taking lots of notes!
Really interesting post! Certainly lots to think about and research. Thanks for this.
Hi Clive
The following has been collected from the FCBL0704 group.
Firstly, what an interesting piece!
A few thoughts that were mentioned:
• It is important to allow learners to repeat areas of learning if necessary to understand and embed what is being learnt
• Learning should be relevant: How to present only information that is relevant to the user, while at the same time providing ready access to all additional information the user may need to complete a task?
• The minuscule nature of attention spans: Studies have shown that the average attention span is between 15-18 minutes. But still organisations put on day long courses or present 45 minute training videos. What needs to be done is embrace the 15 minute to constraint and build learning solutions accordingly.
• The chasm between theoretical and applicable knowledge: Educators should try to present information in the context of real tasks. Then support the task with additional reference information. This allows the user to learn inductively or in other words to learn about features by actually using them to accomplish real tasks. The task based approach increases information comprehension and retention
This information certainly could take us down the route of developing courses that engage and enthuse the learners. Could this information form the basis of useful guidelines when producing learning materials/manuals?
Hi Clive
The following has been collected from the FCBL0704 group.
Firstly, what an interesting piece!
A few thoughts that were mentioned:
• It is important to allow learners to repeat areas of learning if necessary to understand and embed what is being learnt
• Learning should be relevant: How to present only information that is relevant to the user, while at the same time providing ready access to all additional information the user may need to complete a task?
• The minuscule nature of attention spans: Studies have shown that the average attention span is between 15-18 minutes. But still organisations put on day long courses or present 45 minute training videos. What needs to be done is embrace the 15 minute to constraint and build learning solutions accordingly.
• The chasm between theoretical and applicable knowledge: Educators should try to present information in the context of real tasks. Then support the task with additional reference information. This allows the user to learn inductively or in other words to learn about features by actually using them to accomplish real tasks. The task based approach increases information comprehension and retention
This information certainly could take us down the route of developing courses that engage and enthuse the learners. Could this information form the basis of useful guidelines when producing learning materials/manuals?
A good chunk of this is CLT - Cognitive Learning Theory. Fascinating and immediately applicable theory.
I'd like to thank FCBL0704 (whoever that may comprise) for some useful points here. I particularly sympathise with your preference for task-based learning in which throey/concepts/models are presented as needed. I would be interested to know your source for the 15 minute attention span finding.
Hi Clive,
I'm working with a few others at http://www.taptrainer.com/ on the Foundation Certificate in Blended Learning. So like some of the previous posts here are som of our collective thoughts from FCBL07-
The mind is only able to deal with a tiny proportion of the data it receives - I think that what Itiel Dror has to say supports the idea that the course designer's job is to give learners things to do that are genuine and rich, rather than to give them things to look at that are genuine and rich
The distinction may seem quite obscure, but you see "multimedia" materials that have expensive, extensive, and ultimately distracting graphics (sometimes made with little if any understanding of effective interface design), alongside mundane, simple, and unchallenging tasks for learners to do.
All studies that have been conducted show that average attention span is about 15 to 20 minuets. So surely we should be designing course with this in mind.
Grouping small 15min topics together sounds good and reading this article shows that maybe this is the most effective method of learning
It is important to allow learners to repeat areas of learning if necessary to understand and embed what is being learnt
Some very interesting points don’t know if I agree totally with rewards.
But definitely should be challenging.
Tariq - you probably disagree with rewarding achievement in learning because of the organisation we both work for, in the main we do not reward learning because it is mostly to do with improving the job you are doing and we have national pay scales which are not flexible. Even there however some rewards are gained by passing exam courses - promotion, pay rise, etc. Many other organisations both large and small do reward their workforce for improving their skills and therefore adding to the benefit of the whole company.
I completely agree with you that it should be challenging, far too many courses I have been on or involved in have been too weak for the intended audience leaving everyone dissatisfied. This is often down to too much of a mix of abilities - another point brought up in the article and commented on by Jon, however grouping can be hard to achieve effectively as participants are rarely truthful about their own abilities either claiming to be better or worse than they actually are.
I think we have all heard the phrase 'Death by PowerPoint' and have all been there at some stage in our training life. I have as a trainee many times and must admit now automatically I hear the word PowerPoint and my eyes glaze over, my jaw slackens and I start to dribble Okay. Slight exaggeration but not too far from the mark I think.
The problem I find with our department is they cram the PowerPoint full of everything they are saying so basically so it's like that old program Catchphrase .. they end up saying what you see and it is duller than dull to sit through. I've never experienced being a death by PowerPoint trainer but would assume it's duller than dull from that end to.
PowerPoint, like any tool, can be effect if used correctly and that is where people go wrong so therefore really any training can have this effect if the method isn't used to it's full potential and people won't be giving us there full attention or be using their brains to it's full potential.
I also agree with the point that Educators should present information in the context of real tasks as this would make it relevant to the person. I assumed this was common sense.
It is easier for a person to focus their attention on the desired point if there is minimal noise (other information) surrounding it. Reducing noise also reduces context, so a balance needs to be struck. That’s why e-learning or webex need preparation before going through to get maximum benefits of session
Better for the designer/teacher to present material ready grouped. I think it should considered during designing e-learning content or even conducting training that based on delivering facts, knowledge for easily understanding and for quick recalling.
Individuals use top-down processing to reduce overload. This draws automatically on their past experience of the particular context, existing knowledge and intelligence and avoids them having to evaluate all new information from the bottom up. smart way for speeding learning process.
Designers/teachers need to take account of the way in which the information is likely to be encoded and processed - it's not 'what you teach' but 'what is learned'. That should be part of teacher performance evaluation checklist.
20% of your blood is in the brain. That reflects the importance of that organ body.
Be consistent in the level of your presentation, i.e. not too complex, not too simple. Try to work with homogeneous groups; better still personalise the learning. Golden rule to be followed for successful presentation.
Tariq Hussain
Andy Wade
Andy Hyde
Claire-Louise Barnes
Mufarreh Asiri
Jon Brown
The idea of repetition can't be too heavily stated either. While memory can hold only a given number of chunks at a time, what is just as important is how those chunks make it out of working memory into the long term consolidation process.
I forget the statistics specifically, but the numbers essentially go:
- to get something from working memory to short term memory, the information has to be repeated within 30 seconds.
-to get it from short term into long term consolidation, it must be repeated within 90 minutes.
-From there it actually takes as long as 10 years to fully consolidate a memory.
And we wonder why one day training where information is mentioned and then never seen again is lost on our learners...
Thanks for the nice post!
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How one learns a task is associated with balance. Noise can be considered an inabalance in the structure of the task which is to be a measurement for retention.
The receipe for learning often reflects groups of items and events that promote the short term memory * i believe* to become long term memory when associated with an event of emotion. Catagories that would be considered sterotyping... are they possibly called a learning curve?
How events or learning is encoded upon the brain depends upon several key factors that allow for rentention and depending on noise , which can detract from that encoding.
How you learn is how students should be approaced when putting together the way that they can respond. Knowing your audience is very important but knowing that they may have cognitive retention issues is key indevelopment of expanding that 15 minute window.
For example: When asked a yes or no question in a court room. The elements of what was learned from an experience is expected to be answered with a yes or no. Due to the way the question is posed, although the answer seems obvious to others, the learner who has experienced the task and the ability to retentively regurge what was learned, is grouped with an emotion, flash back of what is seen in the minds eye, felt with the physical body, etc... which adds to the distraction of how to communicate this in a simple NO or Yes answer. Conflict developes within those that have cognitive retention communication disorders. The element of linking communication and retention to effective communication is knowing that affect and effect how they are to proceed to present the whole picture of what was learned is how they retained the information or will continue to retain in the long term memory and the ability to sustain long term memory events.
This would be a measurement in itself, while others become frustrated or sterotyping a person as a difficult learner who in their opinion can't answer a "simple" yes or no by often are if not allowed to complete the task of cognitively processing what was learned. Failure to express an event and what was learned which represses... causing discouragement in learning or wanting to retain information or participation.
I agree with Itiel on these key issues because I have observed this response.
When a questioned is posed under stress. An event which triggered the learning is brought back to mind with triggers mentioned above.
I know encoding a response is disrupted by surprize and that encoding has a chink in the link. Those that have learning disabilites, or physical disabilties that impact the visualization or tactile infrenences often are substituted by other means of going around the the disruption if the event was a short term encoding event.
Humor often can replace that minds eye disruption in learning that can be associated with cognitive overload. Letting the learner pick out a series of context of tasks that are available they will gravitate to the strongest and most effective elements where what was communicated can be transformed into a quantive effect with qualatative application.
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