Analyzing Secondary Sources
Analyzing secondary sources involves evaluating the dierent ways historians interpret the past, including
dierences in interpretation of the same historical event or process. It also involves nding patterns and trends
in quantitative data sources, such as tables, charts, and maps, and considering the historical implications of
those patterns and trends.
In order to interpret secondary sources, students need to understand how a historian uses evidence to
support her or his argument. Historians, like AP history students, rely on incomplete primary sources—partial
remnants of the information that was available at the time being studied. The historian must make inferences
from explicit or implicit information in primary source material and posit relationships between sources that
were produced independently of one another. For this reason, understanding a historical narrative requires
identifying and evaluating how the historian has interpreted and combined sources to make them tell a
coherent story. Students should understand that such interpreting and combining serves as the connective
tissue in every historical narrative.
In order to foster this kind of analysis, teachers might ask students to break down a given historical account
into two components: what a source used by the historian actually contains, and what the historian says
it means or the implications he or she draws from it. In addition, teachers can present students with a
historiographical debate, such as: Was the Cold War inevitable? To motivate this debate, teachers can provide
students with two or more perspectives on the issue.
The following chart identies underlying questions and strategies to help students become procient in
analyzing secondary sources.
Underlying questions
Why are the questions
signicant for analysis?
Suggested instructional strategies to
develop prociency
What is the main idea, or
argument, of the excerpt written
by each historian?
Historians make dierent
interpretations of the past;
history, by its nature as
a discipline, is inherently
interpretive. When they
examine the past, historians
make use of dierent reasoning
skills to analyze primary and
secondary sources and then
organize the information from
these sources into a coherent
narrative based on an argument,
or thesis, about the past. This
argument is an interpretation
of the past that reects the
historian’s best understanding.
However, written history, like
the events that constitute
history, is always changing,
as new information and new
ways of looking at the past
become available. It is therefore
important to understand that all
accounts of historical events are
interpretations of those events.
Give students two paragraphs
concerning a specic event, each written
by a dierent historian. Ask students to
identify the main argument of each.
What is one piece of information
from this time period that
supports the argument of the
historian? What is a piece of
evidence that undermines the
argument?
Provide students with a paragraph
written by a historian explaining an
event in history. In small groups,
ask students to nd two pieces of
information that support the argument
being made and two that challenge it.
Why might a dierent historian
make a dierent argument
concerning the same event or
development?
After studying various causes for an
event, give students two excerpts, each
from a dierent historian, that provide
dierent interpretations of the event. Ask
students to write a short essay in support
of one of the interpretations using
primary sources and what they know
about that period in history as evidence
for their argument. After the essays have
been returned to students, pair those
who supported dierent historians and
have them come up with an explanation
for the dierence in interpretations.
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© 2017 The College Board
AP United States History Course and Exam Description
109
AP U.S. History Instructional Approaches