Synthesize Multiple Sources — Synthesize information from multiple sources.

The ability to synthesize multiple sources has been recognized as a cornerstone of literate thought since the classical rhetorical tradition, but its explicit role in standardized assessment is a relatively modern development. Ancient Greek and Roman rhetoricians such as Aristotle and Quintilian understood that persuasive argument required the integration of testimony, evidence, and logical reasoning drawn from various authorities—a practice that foreshadowed the modern synthesis essay. As educational assessment evolved in the twentieth century, the emphasis shifted from rote recall to critical thinking, placing source-based writing at the center of what it means to demonstrate competency as a reader, writer, and future educator.

For aspiring teachers, the stakes of this skill are both professional and pedagogical. The PRAXIS Core Writing (5723) exam assesses whether candidates can read two passages on a related topic, identify points of agreement and disagreement, and construct a coherent essay that draws on both sources to support a central claim. The fundamental question that synthesis addresses is: How do we move beyond simply reporting what individual sources say and instead create new meaning by connecting, evaluating, and integrating their ideas? Mastering this skill is essential not only for passing the exam but for modeling evidence-based reasoning in your future classroom.

Synthesis is not the same as summary, and understanding the distinction is the first step toward performing well on the PRAXIS Core source-based essay. When you summarize, you condense a single source's argument into fewer words. When you synthesize, you bring multiple sources into dialogue with one another, identifying patterns of convergence and divergence and using that interplay to advance your own thesis. The principles below form the conceptual architecture of effective synthesis.

The diagram below illustrates the cognitive and structural process of moving from raw source material to a fully synthesized essay. Notice that the process is not linear—it involves recursive loops of reading, analyzing, connecting, and composing. The key distinction between a summary-based approach and a synthesis-based approach is visible in how the sources funnel through a comparative analysis stage before reaching the final essay structure.

As the diagram reveals, the critical juncture is the comparative analysis stage. This is where you move beyond passive reading and begin actively identifying the relationships between sources. Notice that your thesis emerges after this comparison—it is informed by the evidence rather than imposed upon it. The final essay organizes body paragraphs by theme, drawing on both sources within each paragraph to support a single aspect of your argument. This thematic organization is what PRAXIS scorers look for when evaluating whether you have truly synthesized the material.

Understanding the mechanics of synthesis requires examining how skilled writers mentally and structurally transform separate source materials into a unified argument. On the PRAXIS Core Writing exam, you will encounter two passages—typically 200 to 300 words each—that address the same general topic from different angles or with different emphases. Your task is to read both, formulate a position, and compose an essay that integrates evidence from both sources. The mechanism involves four distinct cognitive operations that work in concert.

Step 1: Active Reading with Annotation

Before writing, you must engage in active reading—identifying each source's main claim, key evidence, underlying assumptions, and tone. As you read Source 1, note its thesis and two or three supporting points. Then, as you read Source 2, deliberately look for points that overlap with, extend, challenge, or contradict what Source 1 established. This cross-referencing habit is the foundation of synthesis.

Step 2: Mapping Relationships

Once you have annotated both sources, the next step is to map the relationships between their ideas. These relationships fall into several categories: agreement (both sources support the same claim), complementarity (each source provides evidence for different aspects of the same claim), tension (the sources emphasize different priorities or values), and outright contradiction (the sources make incompatible claims). Identifying these relationships is what transforms two summaries into a synthesis.

Step 3: Thesis Formation

Your thesis statement must do more than pick a side. An effective synthesis thesis acknowledges the complexity of the issue by accounting for the perspectives of both sources while asserting your own evaluative position. For example, rather than writing "Source 1 is correct," a synthesis thesis might state: "While both sources agree that technology affects student learning, Source 1 more persuasively demonstrates the need for structured digital literacy instruction because it provides empirical evidence that Source 2's anecdotal approach cannot match."

Step 4: Thematic Organization with Integrated Evidence

Finally, you organize your essay by themes or analytical points rather than by source. Each body paragraph makes a claim that supports your thesis, then draws on whichever source (or both) provides the best evidence for that claim. Within each paragraph, you explicitly connect the sources by using phrases like "While Source 1 emphasizes…, Source 2 complicates this by…" or "Both authors concur that…" This interweaving of evidence is the hallmark of genuine synthesis.

Effective synthesis relies on a repertoire of specific rhetorical moves that connect sources to one another and to your thesis. These moves can be classified into distinct categories, each serving a different analytical purpose. The diagram below maps the most common synthesis moves and their functions, providing a visual taxonomy you can internalize for exam day.

Not every synthesis essay will use all five move types, but being aware of this taxonomy allows you to select the most effective rhetorical tools for a given pair of sources. On the PRAXIS Core, the two passages typically exhibit at least one point of agreement and one point of tension, giving you a natural structure for comparison. The strongest essays demonstrate an ability to move fluidly between agreement and tension, showing evaluative judgment about which source's evidence or reasoning is more compelling on any given point.

Below is a step-by-step walkthrough of how to synthesize two PRAXIS-style source passages on the topic of homework in K–12 education. The process mirrors exactly what you should do during the 30-minute source-based essay task.

Understanding how the PRAXIS Core Writing exam scores the source-based essay can help you target your efforts where they matter most. ETS evaluates responses on a 1–6 scale, with synthesis quality—meaning how well you integrate and evaluate the two sources—being one of the central scoring criteria alongside organization, development, and conventions. The table below contrasts the traits of strong synthesis essays with common pitfalls that lead to lower scores.

The synthesis skills you develop for the PRAXIS Core Writing exam are not merely test-taking strategies—they are foundational competencies that you will exercise daily as a certified teacher. Whether you are designing lesson plans that draw on multiple curricular standards, evaluating competing pedagogical approaches in professional development, or guiding students through their own research projects, the ability to synthesize information from diverse sources is central to effective teaching. The table below maps the PRAXIS synthesis skills to their advanced counterparts in professional educational practice.

As you advance in your teaching career, synthesis becomes even more complex and consequential. You will encounter situations where the "sources" are not just texts but include student data, parent feedback, administrative directives, and district policies—all of which must be integrated into coherent instructional plans. The PRAXIS Core source-based essay, then, is best understood as an entry-level demonstration of a skill that will grow in sophistication throughout your professional life.

The following five problems are designed to build your synthesis skills progressively, moving from conceptual understanding to critical application. Work through each one carefully, then compare your response to the provided answer.