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2020 future: briefing paper 5 The impact of brain science on education Supported by www.ascl.org.uk The impact of brain science on education The situation in 2009 Since the 1980s there has been an explosion of research on the structure and functioning of the brain. It has been said that we have learned more in the last few years than in all of history before that. The results over the last decade have fed into what has been called ‘brain-based education’. Brain science has been used to support co-operative learning, whole-language instruction, thematic learning, listening to classical music, greater use of mental visualisation techniques in teaching and so on. Neuroscience – the investigation of how the brain learns and remembers by studying the organisation and development of nerve cells, molecular changes and neural pathways – is still a young science. Almost certainly there is more we don’t know than we do. And some of what purports to be brain-based education is not grounded in a scientific understanding of the brain. However, the potential of brain research to help educators understand fundamental questions is enormous – questions such as: lHow far is intelligence a given at birth or developed during childhood and adolescence? lHow far is the effective learning of specific knowledge and skills age related? lAre some styles of learning more effective than others – and more suited to some kinds of students than others? lWhy do some find it so hard to acquire literacy and numeracy skills and what are the most effective ways of tackling learning difficulties? This briefing looks first at the ways that neuroscientists conduct research into how the brain develops and works? The briefing then maps out the territory where brain science has the most to offer educators over the next ten years and discusses myths about the functioning of the brain that have the potential to distract and mislead those involved in learning. It concludes by suggesting that one of the next challenges for neuroscience will be to help understand what makes for effective teaching and instruction. 2 www.ascl.org.uk Organisation of the brain 1 The human brain weighs around 1,300 to 1,400 grams. The largest part of the brain is the cerebrum. The cerebrum is divided into two halves (right and left hemispheres) by a deep fissure. Each hemisphere has its own specialties but they work together through a thick bundle of nerves, called the corpus callosum, at the base of the fissure. Each hemisphere controls functions that for reasons that are not understood operate on the opposite side of the body. The outermost layer of the cerebrum covering both hemispheres is the cerebral cortex which is about a quarter of an inch thick. The cerebral cortex is like the information processing centre of the brain enabling us to make sense of sensory data, communicate using language, think, learn, plan, recall memories, move our body parts and a myriad of other functions. Each hemisphere has four lobes (see Figure 1). lThe frontal lobe controls thinking, planning, organising, problem solving, short-term memory and movement. In the rearmost portion of each frontal lobe is a motor area, which controls voluntary movement. A nearby place on the left frontal lobe called Broca’s area allows thoughts to be transformed into words. The cortex covering the frontal lobes is referred to as the association cortex. lThe parietal lobe interprets sensory information, such as taste, temperature, spatial relationships, touch and pain. lThe occipital lobe processesimages from the eyes and link that information with images stored in memory. The occipital lobes are covered by the visual cortex. lThe temporal lobes processes information from senses of smell, taste and sound. They also play a role in memory storage and are covered by the auditory cortex. Below and behind the rest of the brain is the cerebellum. Its main function is to combine sensory information from the eyes, ears and muscles to help coordinate movement and balance. The Figure 1: Areas of the human brain Source: Oregon Health and Science University brainstem links the brain to the spinal cord and controls functions vital to life, such as heart rate, blood pressure and breathing. Below the cerebral cortex are functions that form the limbic system of the brain. They control our emotional responses. Key elements include: lthe thalamus, which acts as a gatekeeper for messages passed between the spinal cord and the cerebral hemispheres lthe hypothalamus, one of the busiest parts of the brain. It has been likened to a thermostat regulating a body’s temperature and controlling crucial urges – such as eating, sleeping, aggression and sexual arousal lthe hippocampus, which sorts our memories. It converts things that are in our mind at the moment (short-term memory) into things we will remember for a long time (long-term memory) and sends them to appropriate parts of the cerebrum lthe amygdala, that learns and stores information about emotional events and plays a role in regulating cognitive functions such as attention and perception These parts of the brain come in pairs, with mirror image halves in the left and right sides of the brain. The brain contains billions of nerve cells known as neurons. All sensations, movements, thoughts, memories and feelings result from lightning fast signals that pass through neurons. At any one moment a huge number of neurons are simultaneously active. A neuron communicates with other cells through electrochemical impulses when the nerve cell is stimulated (see Figure 2). An axon, a fibrous cable-like projection from the cell, passes the messages to other neurons. The messages pass through a junction between two nerve cells (the synapse), and attach to receptors on the receiving cell (dendrites). It is these synaptic connections between neurons that create the complex neural network of the brain’s circuitry – a process called ‘synaptogenesis’. www.ascl.org.uk 3 The impact of brain science on education Figure 2: Functions and make-up of neurons a time, and are quite slow and limited in what they can ‘hold in mind’. Conversely, automatic processes are not under control and may occur in parallel (many things can be processed at the same time). This makes automatic processing extremely fast: the controlled system is like a personal computer from the 1980s, the automatic system like a supercomputer.” 2 These are not two separate systems – the contolled and automatic processes work together. The author of the above quote gives the example of a crossword puzzle. The controlled brain instructs the automatic brain in what to look for and the automatic brain carries out the search. Various options for the right answer may be presented and the controlled brain decides which ones are right. Source: Teachnet.ie/farmnet The process is illustrated in Figure 2 which shows the make-up of three different types of neurons. Motor neurons conduct impulses from the central nervous system to the muscles or glands. Sensory neurons conduct impulses from the sense organs to the central nervous system, stimulating sensations of touch, pain, heat, cold, vision, hearing and taste. Interneurons connect the sensory and the motor neurons. Working at two levels The human brain works at two levels – the controlled and the automatic: “Controlled brain processes such as making a conscious decision or devising a plan happen one at 4 www.ascl.org.uk Controlled processes can also influence automatic ones. “For example, self-control seems to result in part from overriding unconscious desires to seek immediate gratification. Or, when through our automatic brains we become aware of a behavioural response that is based on experience but is unsuitable for a novel situation, we may through our controlled brains ‘restructure’ past thoughts and memories to come up with a new response.” 3 Neuroscientists also describe how our memory systems operate at two inter-linked levels: the declarative and the nondeclarative memory. Declarative memory describes information that we can consciously recall and declare. It defines our capacity to recollect everyday facts and events. Nondeclarative memory is an umbrella phrase for all the other kinds of memory systems which are less conscious. For example, one type of nondeclarative memory supports the acquisition of skills and habits such as tying our shoelaces or riding a bike. Another is associated with priming – this refers to “our capacity to use part of a representation in our nondeclarative memory to retrieve the rest of it, such as when the first one or two letters of a word allow us to recall it in its entirety” 4. How the brain develops 5 The period during a baby in the womb will develop most of the neurons that comprise the mature brain by seven months into pregnancy. What happens after birth is the crucial process of wiring the brain through synaptogensis. At birth the brain only has a relatively small proportion of the billions of synapses that it will eventually have. Synaptic connections are added in two ways. First, in a mechanism that is fundamental to brain development, synapses are overproduced and selectively lost – particularly during a child’s early development. The brain processes information from experience to work out how to function most effectively, selecting the appropriate synaptic connections and discarding the inappropriate ones. For example, in the visual cortex (the area that controls sight) a person has many more synapses at six months than as an adult. The period during which the ‘pruning’ of synapses occurs varies for different parts of the brain. For the sight function it will take two to four years but for the Figure 4 reasoning and planning functions, in the prefrontal cortex, it can take between ten and 20 years. In this way, brain volume quadruples between birth and adulthood not because of new neurons but because of synaptic connections. These develop and are stimulated by the experiences and environment in which children grow up. However, there is not the evidence to say, as some have suggested, that ‘enriched environments’ for children can save synapses from pruning, or can intensify the creation of synapses, thereby leading to increased intelligence or learning capacity. “Any normally stimulating human environment will be (in neuroscientific terms) sufficient for normal human infant development.” 6 The second way that synaptogenesis takes place is through adding new synapses or modifying existing ones in response to experiences, learning or changes in the functioning of the body. An adult developing new maths skills, taking up a new musical instrument, or learning a new language, creates or strengthens synaptic connections. Unlike the overproduction and pruning of the early years this synapse formation continues throughout life. Figure 3: Learning from fMRI (functional Magnetic Resonance Imaging) scans In scan 1, a subject is asked to remember a face. Areas at the rear of the brain that process visual information are active during this task, as is an area in the frontal lobe. In scan 2, the subject is asked to “think about this face”. The scan shows how the hippocampus is activated. In scans 3 and 4, the subject was asked to compare another face to the remembered face. Some of the same visual areas are activated as during the initial memory task, but other areas, such as a part of the frontal lobe, are involved in making a decision about the memory. Source: Mark D’Esposito and Charan Ranganath, Department of Psychology and Helen Wills, Neuroscience Institute University of California, Berkeley. www.ascl.org.uk 5 The impact of brain science on education In addition it has been recently found that the hippocampus generates new neurons throughout life. Thus the brain is far from being a finished product at adulthood – it is highly ‘plastic’ – and although brain functions deteriorate with ageing new learning experiences help the brain to keep working efficiently. This finding provides a scientific underpinning to investing in life-long learning and also has significant implications for maintaining the mental well-being of an ageing population. How does neuroscience gather knowledge? 7 The advances in brain science are linked with advances in computer imaging technology. A brain imaging machine constantly changes its focus as it photographs and digitally stores thin slices of a brain to create a three dimensional image. The graphic displays it produces use the range of the colour spectrum to represent different levels of brain activity – red representing a high level of activity. Three imaging techniques are most prevalent: lFunctional Magnetic Resonance Imaging (fMRI) measures the brain blood-flow patterns. For example, a neuroscientist can study specific brain regions that are active when subjects are asked to carry out specific tasks, such as recalling a memory, reading a book or moving a part of their body (see Figure 3). The performance of a ‘normal’ person can be compared with someone who has difficulties with these tasks. lPositron Emission Tomography (PET) works on the basis of inserting a small amount of radioactively tagged glucose into the bloodstream of a subject. Because glucose is the brain’s main food, PET scans will reveal the brain areas with the most glucose (that are the most active) when asked to undertake different tasks. lElectroenephalogram (EEG) is the least invasive, cheapest and most portable of the imaging technologies. EEG measures electrical brain waves via electrodes placed on the skull. With the advent of wireless technology the brain activity of a student in a classroom can be studied via electrodes placed into a cap 6 www.ascl.org.uk they would wear that would send signals to a nearby computer. What is neuroscience beginning to tell us? Neuroscience is a young science. In some areas it is doing no more than confirming what was already known through cognitive science or behavioral and educational research. But even in fulfilling this function it can help to move the debate away from opinions and theories to evidence and science. In other areas, research is highlighting issues that need further study. However, there are also some emerging findings that will have policy implications for the organisation of learning in schools and colleges over the next decade. 1 Acquiring language skills early is significant The brain is biologically receptive to acquiring language. The first ten months of a baby’s life are particularly important in shaping the brain’s response to hearing and understanding distinct phonetic sounds. Equally important, there is an optimum or ‘sensitive’ period for acquiring grammatical skills. Studies show that grammatical processing relies more on the frontal regions of the left hemisphere, whereas semantic processing (understanding the meaning of words) and vocabulary learning activate regions at the back of both hemispheres. However, brain studies show that when English is acquired late, for instance because of a hearing problem or immigration to an English speaking country, grammatical abilities do not develop at the same rate or to the same extent. Late learners rely not just on left hemisphere systems for grammatical process but use both hemispheres. The same is true when it comes to English speakers learning a foreign language. If the brain is exposed to a foreign language between one and three years of age grammar is processed in the left hemisphere as in a native speaker. Delaying the start of language learning, until just four or six, means that the child processes grammatical information with both hemispheres. Starting language learning at 11 leads to a different pattern of brain activity. These findings do not mean that individuals cannot master or be fluent in second and third languages if they start them later – we know from experience that they can – but their brains will function differently in order to acquire these skills. 2 The understanding of reading is growing8 Neuroscientists are increasingly understanding how the neural pathway operates in learning to read and write. It is affirming how different parts of the brain complement each other to sound out letters/phonemes/words on the one hand and to recognise whole words on the other. An OECD study 9 concludes that this points to adopting a dual approach to teaching literacy that balances phonetic and ‘whole language’ learning 10. In practice this is what most primary teachers do but in the current debate on the use of synthetic phonics this conclusion is relevant. Neuroscientists have also been able to identify the glitch in the neural circuitry that explains dyslexia. In those that read normally, the brain is active in both the front and the back of the left hemisphere of the brain. However, with dyslexic readers the regions at the rear (that translate written into text and enable comprehension of words) are relatively under-active and the systems at the front of the brain (that process syntax) try to compensate by being more active. “It appears that dyslexic readers are using the frontal regions as a sort of ‘alternative back-up’ to try to decode, because the areas that would normally serve to interpret the written code are not working as they should.” 11 Neuroscience is also contributing to effective ways of helping those with dyslexia read effectively. Neuroimaging suggests that the phonological system (the ability to recognise, sound out and put together phonemes) in dyslexic readers is “immature rather than deviant” 12 and that therefore remedial strategies should focus on sound and word pronunciation. Essentially the research points to focusing on helping dyslexic readers to decode and sound out an ever growing vocabulary of words and so help to create the neural circuitry that will enable them to read effectively. The earlier that dyslexia is identified and tackled the more effective this strategy is likely to be. There is a further benefit from looking at dyslexia from a neurological perspective. Rather than being seen to have a permanent disability, a child or young person becomes a student who can achieve the same goal of being literate by an alternative learning route. 3 The first implications for developing mathematical skills are emerging 13 The understanding of how the brain works in relation to maths is in its relative infancy. We do know that infants are born with a sense of numbers and by the age of three are demonstrating this by the way they point, count in order, use their fingers and link simple numbers to quantities. The research suggests that the government is on the right lines in using the Early Years Foundation Framework to enhance children’s natural sense of numbers. Neuroscientists also know that different mathematical abilities are distributed across different parts of the brain. Calculation skills seem to be largely, though not always, confined to the brain’s left hemisphere but there are separate areas of the cortex for multiplication and subtraction skills. Comparison and ordinality skills (the ordering and sequencing of numbers) seem to be localised in rear regions of the right hemisphere. The linguistic area of the brain seems to store those calculations that have been learned so well that they are effectively recalled as facts. Even less is known for certain about how the brain processes more advanced maths working but it does seem that it involves separate and additional neural circuits. For example, neuroscientists think that algebraic knowledge is mostly processed independently of mental calculations and that more complex calculations involve visuospatial regions of the brain. Neuroscientists are very cautious about drawing firm conclusions from their work at this stage. They do, however, say that because numerical knowledge relies on widely distributed parts of the brain’s circuitry, it is important for maths education to be designed to coordinate and integrate these functions and so “bring coherence and fluidity to numerical knowledge”.14 Given the different areas of the brain that are in play neuroscience also seems to provide corroboration for what many maths teachers will attest to – namely that just because a student is strong or weak in one area of maths will not necessarily mean s/he has the same propensity in other areas. This may possibly raise issues about whether it is right to automatically place students in the same ‘set’ for all aspects of maths. Similarly just because a student struggles with reading does not mean that s/he will be weak in maths. www.ascl.org.uk 7 The impact of brain science on education The findings of neuroscience also point to the value of the old maxim ‘show me your working’ – that is, students practising estimating and demonstrating when a solution is sensible and correct and when it is not – as a means of entrenching learning in the brain’s neural pathway. This in turn emphasises the significance of formative assessment in ensuring that students understand and follow the correct learning pathway. As with dyslexia, neuroscientists can pinpoint the part of the brain that gives rise to dyscalculia (the left hemisphere elements involved in arithmetic). Although further research is needed they are confident that the problems can be addressed because of the ‘plasticity’ of the brain circuitry involved in processing maths.* 4 Adolescence is a key time in the brain’s development 15 Before brain imaging became widely available it was widely thought that the brain was a finished product by the age of 12. However, a study that has tracked a cohort of young people in the United States has shown how several areas of the brain go on developing well into puberty and beyond. There is a second wave of generating and pruning synapses and interestingly the order in which this happens reflects the history of human evolution. Those areas of the brain which belong to the earliest stages of human evolution mature first, with later evolutionary developments maturing later. In adolescence the first areas of the brain to mature (those at the extreme front and back of the brain) are those with the most basic functions that process senses and movement. The parts of the brain associated with evaluating risk and reward (the right ventral striatum) also develop early on. Areas involved in spatial orientation and language (parietal lobes) follow. That leaves the areas controlling more advanced ‘executive’ functions (the prefrontal cortex) to mature last. This pattern of development means that in the teenage years the parts of the brain that fuel sensation-seeking are operating at full throttle and racing away while the parts that act as a brake on our urges are still developing. Sleep patterns also change during adolescence. The brain’s pineal gland arranges for the hormone melatonin, which is critical in enabling the body to sleep, to be secreted much later in the day in adolescence than in childhood or adulthood. Sleep also plays an important role in the process of myelination which develops during puberty. The process involves the axons which carry messages to and from neurons (see Figure 2) being coated with a fatty substance called myelin. The myelin sheaths enable messages in the brain to be communicated more efficiently. All this happens, of course, alongside the surge in the production of hormones in the teenage years – testosterone in boys and oxytocin in girls, which are associated with bonding and commitment, although imbalances can contribute to aggression. These developments combine to make adolescence a time of deep physical, emotional and mental change. The fact that the adolescent brain continues to develop – and at different rates in different young people – would seem to be at variance with policies or approaches that result in the rigid streaming of young people in education. The performance of young people should be seen as dynamic and kept under review. Most significantly, the findings on the nature of adolescent brain development add extra force to the need to address pastoral and well-being issues – as discussed below. 5 Effective cognitive thought requires emotional maturity and stability 16 Teachers experience on a daily basis how emotions affect performance and learning. Neuroscience is giving us deeper insights into the relationship between cognitive and emotional thought processes. It is not, as one study has described, that our emotions are like messy toddlers in a china shop running around and damaging delicate cognitive glassware. Emotions are more like shelves on which the glassware sits – without them cognition has less support 17. Learning, attention, perception, memory, problem solving, decision making and motivation are affected by the level of emotional well-being and maturity. This points to the importance of * Similarly just because a student struggles with reading does not mean that they will be weak in maths. 8 www.ascl.org.uk identifying and addressing the needs of students with severe emotional problems, having good counselling and pastoral care services and providing parenting support to help foster stable emotional family lives. In one respect, however, the china shop allusion is appropriate. Stress can play havoc with effective learning. Moderate stress is normal and healthy – it stimulates our response to external events and risks and contributes to effective operation of the memory. But severe stress damages learning and memory. The brain produces a number of hormones to help manage the response to stress but when stress is excessive the high levels of hormones generated damage the neural connections in the hippocampus (that controls long-term memory) and make the amygdala (that regulates emotions) highly active in sending messages to the hippocampus. There is also evidence that stress interferes with the ‘executive’ functions in the pre-frontal cortex. Learning is therefore likely to be disrupted during periods of high stress. That disruption will not necessarily be limited to the particular child or student suffering the stress. The operation of what are called ‘mirror neurons’ in the brain means that a person observing another’s emotional experience can find him or herself registering similar feelings. Again teachers will recognise the syndrome where the behaviour or reactions of one student can affect a whole class. Similarly if a teacher is stressed this can communitcatre itself to a whole class. This understanding makes it important for staff to understand the significance of defusing rather than exacerbating stressful situations: of enabling students to regain their composure and self-control. Sanctions may be necessary if unacceptable behaviour is involved but they are more likely to be recognised and accepted when a student is in a calm rather than agitated state. Student voice and feedback can be a valuable and effective way of identifying when teachers are stressed and not communicating as effectively as they can. When the period of excessive stress ends, the brain is able to regrow the neural connections that have been disrupted. The brain is resilient. However, where severe stress is not just the result of a specific incident but part of a long-term problem (for example, bullying, a very disrupted home life or severe deprivation) learning is likely to be affected on a prolonged basis. Other ways that the impact of stress can be offset are discussed in the next section. 6 Supporting brain functioning with good physiology 18 A good diet is important not just for physical health but also to enable the brain to work in an optimum fashion. Studies have repeatedly shown that foods such as fish oils are important for hormone balance and the immune system, and that skipping meals - in particular, breakfast - interferes with cognition and learning. The OECD report argues that educators and schools have not sufficiently taken on board the link between nutrition and academic performance. Regular moderate aerobic exercise does not just contribute to cardiovascular health, it also helps improve brain performance. Physical activity increases the amount of oxygen in the blood and the concentration of oxygen affects the brain’s ability to function. There is evidence that higher concentrations of oxygen in the blood significantly enhance cognitive performance. Physical activity also helps improve motor coordination and control by stimulating neural connections in the cerebellum. This is significant because the cerebellum is increasingly thought to connect not just to the part of the cortex related to motor functions but also to other areas of the brain that relate to cognitive functions. “The more we study the cerebellum, the more we realise that movement is inescapably linked to learning and memory.” 19 Researchers also argue that incorporating opportunities for movements into lessons and between lessons helps students to use up some of their kinesthetic energy (the ‘wiggles’) and aids attention and concentration. Sleep, and how much children and young people have, is not something that educators can influence very directly but sufficient sleep is www.ascl.org.uk 9 The impact of brain science on education important to the learning process. Different phases of our sleep patterns consolidate skill memories and declarative memories (the memory of facts) and, as higlighted above, sleep is an important part in the development of the brain. Too little sleep and sleeping problems are associated with poorer academic performance. Given the importance of sleep in adolescence one school in the UK and several schools in the US are piloting changes to the timing of the school day to enable students to start studying later (see Figure 4). Figure 4: Changes to the school day at Monkseaton High School Monkseaton High School in Whitley Bay, North Tyneside, has pushed back the time morning lessons begin by one hour as an experiment to see if pupils benefit from more rest. Instead of suffering a bleary-eyed start at 9am, since half term, the school’s 850 pupils have enjoyed an extra hour in bed before beginning their studies at 10am. The five-month experiment was launched with the blessing of teachers, parents and pupils after the school’s headmaster, Dr Paul Kelley, took advice from sleep experts. Russell Foster, a professor of circadian neuroscience at Brasenose College, Oxford, who advised the school, said research shows that teenagers coping with the onset of puberty require more sleep than the rest of the population. As a result, they are likely to be at their peak performance in the afternoon rather than the morning, and continuous interruption to their sleep patterns is likely to have an impact on their health and mental capacity. Source: The Daily Telegraph 10/11/09 Dispelling neuro myths 20 Partly because neuroscience is advancing all the time and partly because research findings get picked up, simplified and misinterpreted in the media, a number of neuro myths have taken hold among some educators. Particular myths that need debunking include: There are certain critical periods for learning; children will miss out, for example, if they do not develop key skills before the age of three. While, as explained above, there are periods that are optimum for learning certain skills, cognitive capacities are not lost if a particular learning window is missed. Skills can be learned throughout life and the process of synaptogenesis helps to reprogramme the neural pathways in the brain. Girls are more left brain and boys are more right brain. There are two myths here. First, although the different hemispheres of the brain do have specialised functions it is a mistake to conceive them as operating independently. In fact: “There are massive cross-hemisphere connections in the normal brain and both hemispheres work together in every cognitive task so far explored with neuroimaging.” 21 The second myth is that male and female brains are significantly different. While it is true that there are some differences (the male brain is larger; the areas of the brain that support language are more strongly activated in females and males are better than females at mentally rotating objects) they are relatively small and the range of difference within genders is broad. Some men will have better language skills than some women, and some women will have better spatial and mathematical skills than some men. Researchers have not identified any gender-specific processes involved in building up neural networks during learning and conclude that the differences between girls and boys do not have any practical consequences for learning and teaching. Listening to Mozart enhances your IQ. In fact the study, which the media used to construct this story, showed that listening to a Mozart sonata only improved spatial temporal reasoning* (one of the many components of IQ) and that the effect wore off quickly. More sustainable improvements come from creating music. Learning to play a musical instrument sharpens aural skills and involves * Spatial temporal reasoning involves the ability to form mental images from physical objects and to see and compare patterns in time and space. 10 www.ascl.org.uk learning new motor skills that have to be coordinated. This seems to result in permanent changes in the brain structure and musicians have a larger auditory cortex, motor cortex, cerebellum and corpus callosum than non-musicians. Musical training improves verbal memory and in addition keyboard players develop improved spatial reasoning skills on a more lasting basis. fMRI scans have shown that musical training activates the same areas of the brain as are activated during mathematical processing. However, neuroscientists do not have firm evidence to say that the former helps with the latter – though it may be the case. Where does neuroscience go next? Teaching methods should be adjusted to suit students’ learning styles. There is in some quarters a vogue for categorising students according to how best they take in and process information – a common classification is to describe students as being visual, auditory or kinaesthetic learners. This assumption is then used to tailor the teaching and learning experience to fit the style of learning of each individual. If neuroscience is beginning to prise open the Pandora’s Box of how the brain functions in relation to learning it has yet to start the process in relation to teaching. Neuroscience has the potential to inform discussion and practice on what makes for effective teaching by examining students’ brains to establish how well lessons have been understood. It could also, in line with the trends identified earlier, help with early identification of special educational needs and firm up the evidence on how best to address them. And it can help us understand the extent to which young people’s neural pathways are being reshaped by the immersion and interaction with new technology in all its forms. There are two problems with this hypothesis. Often individuals’ own assessment of their learning style is at variance with the results of more objective measures. Second: “As yet, no evidence from neuroscience, or any other science, supports the categorization of learners in terms of their sensory modality or any other type of learning style.” 22 A better strategy is to develop teaching and learning approaches that incorporate and integrate different learning styles so that all parts of the brain are stimulated and engaged. Using the emerging knowledge Continuous professional development (CPD) has an important part to play in ensuring that school staff – including teaching assistants who often have contact with students in stressful situations – understand the science of how the brain works and its emerging significance. A workshop on this issue could, for example, form part of the induction of newly qualified teachers. And it should certainly be a feature of the Masters in Teaching and Learning that is being developed by the government. A continual theme of this briefing has been that neuroscience is very much in the early stages of exploring how the brain works. However, it is likely that there will be further major advances over the next decade, particularly if the findings from neuroscientists can be integrated with those from other disciplines. The challenge is to conduct research in a way that spans the classroom laboratory divide: to develop ways for teachers, educational researchers, educational psychologists and neuroscientists to share knowledge and work together to test hypotheses. References 1 This section draws on three essays in The Jossey-Bass Reader on The Brain and Learning, ed Fischer and Immordino-Yang, 2008: What Happens in the Brain when Children Read by Patrica Wolfe and Pamela Nevills, Neuroscience and education by Usha Goswami, and Mind and Brain by John D Bransford, Ann L Brown and Rodney R Cocking; and chapter 2 of Understanding the Brain: the birth of a learning science, Centre for Educational Research and Innovation, OECD, 2007; and http://www. scholarpedia.org/ 2 Grist, Changing the subject: How new ways of thinking about human behaviour might change, politcs, policy and practice, RSA, 2009. 3 Grist, 2009. 4 Howard-Jones, Neuroscience, Learning and Technology (14-19), Becta, September 2009. www.ascl.org.uk 11 The impact of brain science on education 5 This section draws on essays by Goswami and Bransford et al in Jossey-Bass, Op cit and chapter 2, OECD, Op cit. 6 A Review of the Contribution of Brain Science to Teaching and Learning, by John Hall, The Scottish Council for Research in Education, February 2005. 7 This section draws on an essay by Robert Sylvester, Alphabetized Entries from how to Explain a Brain, in Jossey-Bass, Op cit. 8 This section draws on Goswami and Wolfe and Nevills in Jossey-Bass, Op cit; and chapter 4 of OECD, Op cit. 9 OECD, Op cit. 14 OECD, Op cit. 15 This section draws on Hall, Op cit; and OECD, Op cit. 16 This section draws on three essays in JosseyBass, Op cit: We Feel, Therefore we Learn, by Mary Helen Immordino-Yang and Antonio Damasio; Selections from Why Zebras don’t get Ulcers by Robert Sapolsky; and The Effect of Violence and Stress in Kids’ Brains by Ronald Kotulak; and chapter 3 of OECD, Op cit. 17 Immordino-Yang and Damasio, Op cit. 18 This section draws on essay by David A Sousa, The Brain and the Arts, Jossey-Bass, Op cit; and chapter 3 of OECD, Op cit. 10 OECD, Op cit. 19 Sousa Op cit. 11 Wolfe and Nevills, Op cit. 20 This section draws on Goswami, Op cit, Sousa, OP cit, an essay by John T Bruer, In Search of Brain-based Education, Jossey Bass, Op cit; and chapter 6, OECD Op cit. 12 Goswami, Op cit. 13 This section draws on essays by Goswami, and James Byrnes, Jossey-Bass, Op cit; and chapter 5 of OECD Op cit. 21 Goswami, Jossey-Bass, Op cit. 22 Howard-Jones, Op cit. This briefing is one of eight developed as part of the ASCL 2020 Future project, which aims to stimulate a debate for school and college leaders about developments in wider society that are likely to affect what it means to be an education leader in 2020. The research is being carried out by consultant Robert Hill with generous support from Becta and EdisonLearning. For more information go to www.ascl.org.uk/home/publications/2020_future Previously published Briefing paper 1: The impact of a changing population Briefing paper 2: The impact of climate change Briefing paper 3: The impact of health Briefing paper 4: The impact of ICT Association of School and College Leaders, 130 Regent Road, Leicester LE1 7PG Tel: 0116 299 1122 Fax: 0116 299 1123 Email: [email protected] October 2009, revised December 2009 www.ascl.org.uk