The learning of history is a complex undertaking. Cognitive research done since 1980, much of it in Great Britain and North America, has indicated that it is more difficult to learn and understand history than previously thought. Before the 1980s it was generally assumed that a gradual process of committing historical narratives - constructed around key events, details, names, and dates (substantive knowledge) - to memory would eventually result in a sturdy understanding of the past. The body of research compiled since 1980, however, demonstrates that learning history, if it is to lead to deeper understanding, involves not only the repeated study of such narratives, but also the acquisition and use of a set of domain-specific cognitive strategies (strategic knowledge). Applying these strategies serves as the means by which the past is learned and understood. Researchers and educators frequently refer to the application of these domain-specific strategies to the process of exploring and interpreting the past as historical thinking. Before examining in more detail the implications of this research for learning history, it is important to understand the nature of the domain that learners are attempting to comprehend.
History As a Subject Domain
History is a thoroughly interpretive discipline, closer in many ways to the humanities than to the social sciences. To understand the past, learners cannot conduct controlled experiments to recreate it and then study its effects. Nor can they travel back in time to witness events firsthand. And even if time travel were possible, learners would still be required to interpret the complex events that they were witnessing.
Access to the past is thus indirect, largely governed by artifacts and residue left behind by those who lived it. These include diaries, letters, journals, public records, newspapers, archeological artifacts, pictures, paintings, chroniclers' and historians' interpretations of past events, and the like. Those who make a living inquiring into the past divide the artifacts and historical residue into two types, primary and secondary sources. Primary sources include, among other things, diaries and personal journals compiled by people who actually witnessed or participated in an incident about which they report. Secondary sources include history textbooks or historical narratives written by someone not present at an event but who has studied and interpreted the primary sources that remain. Historical sources form a type of evidence chain or trail that must be painstakingly pieced together into carefully argued interpretations of past events. This piecing-together that learners and inquirers do as they make sense of the past's artifacts and residues has been a central subject of cognitive research studies.
Substantive Historical Knowledge and Understanding
Defining the nature of substantive historical knowledge is rife with debate. Largely, the debate turns on the matter of what constitutes historically significant events and occurrences. For roughly the first half the twentieth century, those who wrote American history, for example, seemed content to concentrate on political, military, and economic achievements in the United States. It was believed that those achievements were the most historically significant. During the 1960s, however, a new generation of historical scholars began to redefine significance in terms of what was often called "history from the bottom up." This generation (sometimes referred to as social historians) began inquiring into the influences on the American past of a variety of sociocultural groups that had often been rendered historically invisible by previous generations of scholars. These groups include antebellum slave communities, labor movements and their leaders, women, immigrants, and small, often marginalized, social organizations. The social historians maintained that these overlooked groups could be seen as powerful participants in, or resistors of, important changes and developments in American history, thus (at least in part) accounting for how change occurred as it did. To ignore such groups would be to misunderstand history. The work of social historians, with their proliferating foci and perspectives on events, has made constructing grand political-military-economic historical narratives less easy to accomplish.
This shifting terrain concerning issues of historical significance has raised difficult questions about what history students should learn. The late twentieth-century increase in the multiculturalization of the United States, for example, has only added to this concern by also raising questions about whose history children should learn. Some participants in the debate, such as Arthur Schlesinger Jr., believe that all U.S. children should acquire the same "common cultural" core of substantive historical knowledge. Schlesinger defines this core largely in terms of those political, military, and economic events that made the United States the most powerful nation on earth. Knowledge of these events would be delivered by traditional, uplifting narratives of American success stories. Current social historians, and those who champion a more multiculturalist portrait of America, consider such definitions of core substantive historical knowledge misleading at best, and dangerous at worst, because they risk characterizing the contributions of those groups of people thought to be less significant as meaningless.
This debate has continued into the twenty-first century. What, and whose, history students have opportunities to learn about in school vary depending on how school officials define what is historically significant. To the extent that they define it in traditional narrative terms, children's opportunities to learn substantive historical knowledge are often determined by the content of school history textbooks, which, for publishers, in their efforts to find a palatable middle ground to bolster sales, means opting in the direction of more traditional narrative treatments. To the extent that a more multiculturalized view of substantive knowledge is in play, students are more apt to study history from multiple sources, such as trade books, historical fiction accounts, and primary sources, that explore the lives of those not frequently included in the more voluminous textbook treatments.
Strategic Historical Knowledge
Much of the cognitive research done since 1980 has centered on the nature of expertise in historical thinking, and on how novices (e.g., grade school students, college undergraduates) differ from experts (e.g., historians). This research indicates that the process of thinking historically that enables deep historical understanding requires certain strategic-knowledge dispositions. These dispositions include the capacity to: (a) read, make sense, and judge the status of various of sources of evidence from the past; (b) corroborate that evidence by carefully comparing and contrasting it; (c) construct context-specific, evidenced-based interpretations; (d) assess an author's perspective or position in an account being studied; and (e) make decisions about what is historically significant. These capacities are exercised while taking into conscious account the way the learner is, by necessity, also imposing his or her own view on the evidence being interpreted.
Learning to think using these cognitive strategies is no small task. First, as historian David Lowenthal has observed, the past is a foreign country, difficult to penetrate from the locus of the present. Reconstructing historical context is troublesome because it often remains virtually impossible for "moderns" to get inside and understand the experiences of those "ancients." Second, evidence is often sparse, and thus so open to competing interpretations that understanding events by building context-sensitive, well-corroborated interpretations is tenuous at best. Third, any attempt to construct a history of events operates on a necessary connection between a past reality and present interpretations of that reality. This connection is, however, denied because there is no method for bringing that past reality back to life to establish the full accuracy of a contemporary interpretation. There are only chains of people's interpretations of the past, some more recent than others. Learning to use the strategies of thinking historically that enable an understanding of the past hinges on the cultivation of a number of such counterintuitive cognitive processes.
Development of Historical Thinking and Understanding
Most of the more recent North American research on learning history has focused on either expert-novice studies, as noted, or on the relationship between how teachers teach history and how students learn to think historically. Views on how the historical thinking and understanding develop have largely been extrapolated from the expert-novice research cited above, and from studies that show how teaching can influence development among novices. Educational researchers in Great Britain - who were initially influenced in the 1970s by Piagetian developmental theories, but later abandoned them for the most part - have done considerably more work in this area. One of the more promising lines of research is called Project Chata. Chata is an acronym for Concepts of History and Teaching Approaches. The goal of Project Chata is to "map changes in students' ideas about history between the ages of seven and fourteen years. The project focused on second-order procedural understandings like evidence or cause" (Lee and Ashby, p. 201).
Preliminary results of the research on the progression of students' ideas about historical evidence and its relationship to the past indicate that naive views of history begin with the understanding that the past is simply a given. As students grow more sophisticated in their understanding, this simplistic view is abandoned, though history remains relatively inaccessible. They follow this with the belief that the past is determined by stories people tell about it. As sophistication grows, students note that reports on the past are more or less biased. This idea gives way to noting that the viewpoint or perspective of a reporter or storyteller becomes important. Finally, students develop an understanding that it is in the nature of accounts to differ, because varying reporting criteria are used by storytellers and chroniclers.
Project Chata researchers have also studied students' development of ideas about causal structure and historical explanations. They observe that: (1) students' ideas about explanation vary widely, with some younger children having more sophisticated ideas than older children; (2) students' ideas about causation in history and their rational explanations of causal structures do not necessarily develop in parallel; (3) student's ideas about causal structures and explanations in history may develop at different intervals, with some ideas occurring in big gains in younger children and others occurring later; and (4) progression in students' ideas about causation and explanation occurred most markedly in schools where history was an identifiable subject matter.
Some Pedagogical Implications
A tentative theory of how to teach learners to think and understand history can be fashioned from the current corpus of research studies. This results in certain propositions. First, learners construct deeper historical understandings when they have opportunities to consciously use their prior knowledge and assumptions about the past (regardless of how limited or naive) to investigate the past in depth. Second, as learners explore the past, attention must be paid not only to the products of historical investigation, but to the investigative process itself. Third, developing historical thinking and understanding necessitates opportunities for learners to work with various forms of evidence, deal with issues of interpretation, ask and address questions about the significance of events and the nature of evidence, wrestle with the issues of historical agency, and cultivate and use thoughtful, context-sensitive imagination to fill in gaps in the evidence chain when they appear.
Applying this theory in the classroom would mean approaching history effectively from the inside out. Teachers would structure learning opportunities by posing compelling historical questions that have occupied the attention of historical inquirers (e.g., Why did so many colonists starve at Jamestown in the winter of 1609 - 1610? How did antebellum slave communities construct oral cultures and to what effect?). Students would adopt investigative roles, obtaining and scouring evidence (much of it obtained off the Internet from rich archival sources now online); reading, analyzing, and corroborating that evidence; addressing perspective in accounts; dealing with questions of agency and significance; and building their own interpretations of events as they addressed the questions posed.
Bibliography
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— BRUCE A. VANSLEDRIGHT




