Academic journal article Phi Delta Kappan

In Search of . . . Brain-Based Education

Academic journal article Phi Delta Kappan

In Search of . . . Brain-Based Education

Article excerpt

The "In Search of . . ." television series is no way to present history, Mr. Bruer points out, and the brain-based education literature is not the way to present the science of learning.

WE HAVE almost survived the Decade of the Brain. During the 1990s, government agencies, foundations, and advocacy groups engaged in a highly successful effort to raise public awareness about advances in brain research. Brain science became material for cover stories in our national newsmagazines. Increased public awareness raised educators' always simmering interest in the brain to the boiling point. Over the past five years, there have been numerous books, conferences, and entire issues of education journals devoted to what has come to be called "brain-based education."

Brain-based educators tend to support progressive education reforms. They decry the "factory model of education," in which experts create knowledge, teachers disseminate it, and students are graded on how much of it they can absorb and retain. Like many other educators, brain- based educators favor a constructivist, active learning model. Students should be actively engaged in learning and in guiding their own instruction. Brain enthusiasts see neuroscience as perhaps the best weapon with which to destroy our outdated factory model.1 They argue that teachers should teach for meaning and understanding. To do so, they claim, teachers should create learning environments that are low in threat and high in challenge, and students should be actively engaged and immersed in complex experiences. No reasonable parent or informed educator would take issue with these ideas. Indeed, if more schools taught for understanding and if more teachers had the resources to do so, our schools would be better learning environments.

However, there is nothing new in this critique of traditional education. It is based on a cognitive and constructivist model of learning that is firmly rooted in more than 30 years of psychological research. Whatever scientific evidence we have for or against the efficacy of such educational approaches can be found in any current textbook on educational psychology.2 None of the evidence comes from brain research. It comes from cognitive and developmental psychology; from the behavioral, not the biological, sciences; from our scientific understanding of the mind, not from our scientific understanding of the brain.

To the extent that brain-based educators' recipe for school and classroom change is well grounded in this behavioral research, their message is valuable. Teachers should know about short- and long-term memory; about primacy/recency effects; about how procedural, declarative, and episodic memory differ; and about how prior knowledge affects our current ability to learn. But to claim that these are "brain-based" findings is misleading.

While we know a considerable amount from psychological research that is pertinent to teaching and learning, we know much less about how the brain functions and learns.3 For nearly a century, the science of the mind (psychology) developed independently from the science of the brain (neuroscience). Psychologists were interested in our mental functions and capacities how we learn, remember, and think. Neuroscientists were interested in how the brain develops and functions. It was as if psychologists were interested only in our mental software and neuroscientists only in our neural hardware. Deeply held theoretical assumptions in both fields supported a view that mind and brain could, and indeed should, be studied independently.

It is only in the past 15 years or so that these theoretical barriers have fallen. Now scientists called cognitive neuroscientists are beginning to study how our neural hardware might run our mental software, how brain structures support mental functions, how our neural circuits enable us to think and learn. This is an exciting and new scientific endeavor, but it is also a very young one. …

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