how to write an introduction paragraph for a thesis paper

How to Write an Introduction

An introduction for an essay or research paper is the first paragraph, which explains the topic and prepares the reader for the rest of the work. Because it’s responsible for both the reader’s first impression and setting the stage for the rest of the work, the introduction paragraph is arguably the most important paragraph in the work.

Knowing how to write an introduction paragraph is a great skill, not just for writers, but for students and researchers as well. Here, we explain everything you need to know to write the best introduction, such as what to include and a step-by-step process, with some introduction paragraph examples.

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What is an introduction?

Your introduction is a way of preparing your reader for your paper. As the first paragraph of your writing , it makes the first impression and sets the reader’s expectations for tone, voice, and writing style. More importantly, your introduction provides the necessary background for your reader to understand your paper’s purpose and key points.

The introduction is also a way to engage and captivate your reader. An interesting, thought-provoking, or generally entertaining introduction makes your reader excited to keep reading—and an eager reader is an attentive reader.

What to include in an introduction

Introductions generally follow the writing style of the author and the format for the type of paper—for example, opening with a joke is appropriate for some essays, but not research papers . However, no matter what your writing style is or what kind of paper you’re writing, a good introduction includes at least three parts:

A hook to capture the reader’s attention
Background for context
A clearly defined thesis statement or main point of your paper

How to write a hook

The hook refers to anything that grabs (or “hooks”) your reader’s attention and makes them interested. This could be a mystery, such as posing a question and only answering it at the end of your paper. Or it could be a shocking statistic, something that makes your reader rethink what they thought they knew and become curious for more information.

Hooks can be even more creative. Some papers start with an analogy or parable to present complicated topics in a way that someone with little experience can understand. Likewise, many writers opt to use personal anecdotes to show a more human side and spark an emotional connection with the reader.

When all else fails, you can use a poignant quote. If you’re having trouble putting your thoughts into words, maybe one of the great minds from history has already said it well.

You can read all about how to write a hook here, including more detailed instructions and examples.

How to add background information

Not every paper requires background knowledge, but sometimes your reader needs to catch up or understand the context before you make your original points.

If you’re writing about something factual, such as a scientific or historical paper, you may need to provide a small lesson on the basics. For example, if you’re writing about the conflict between ancient Egypt and Nubia, you might want to establish the time period and where each party was located geographically.

Just don’t give too much away in the introduction. In general, introductions should be short. If your topic requires extensive background to understand, it’s best to dedicate a few paragraphs to this after the introduction.

How to write a thesis statement

Every good introduction needs a thesis statement , a sentence that plainly and concisely explains the main topic. Thesis statements are often just a brief summary of your entire paper, including your argument or point of view for personal essays. For example, if your paper is about whether viewing violent cartoons impacts real-life violence, your thesis statement could be:

Despite the rhetoric and finger-pointing, no evidence has connected live-action role-play violence with real-world violence, but there is plenty of evidence for exoneration, as I explain here.

Learning to write a good thesis statement is an essential writing skill, both in college and the world of work, so it’s worth taking the time to learn. The rule of thumb for thesis statements is not to give everything away all at once. Thesis statements, and more broadly introductions, should be short and to the point, so save the details for the rest of the paper.

How to write an introduction paragraph in 6 steps

1 decide on the overall tone and formality of your paper.

Often what you’re writing determines the style: The guidelines for how to write an introduction for a report are different from those for how to write an English essay introduction. Even the different types of essays have their own limitations; for example, slang might be acceptable for a personal essay, but not a serious argumentative essay.

Don’t force yourself to write in a style that’s uncomfortable to you. If you’re not good at making jokes, you don’t need to. As long as your writing is interesting and your points are clear, your readers won’t mind.

2 Write your thesis statement

At the beginning of writing a paper, even before writing the research paper outline , you should know what your thesis is. If you haven’t already, now is the time to put that thesis into words by writing your thesis statement.

Thesis statements are just one sentence, but they are usually the most important sentence in your entire work. When your thesis is clearly defined, your readers will often use it as an anchor to understand the rest of the writing.

The key to writing a good thesis statement is knowing what to ignore. Your thesis statement should be an overview, not an outline. Save the details, evidence, and personal opinions for the body of the paper.

If you’re still having trouble, ask yourself how you’d explain this topic to a child. When you’re forced to use small words and simplify complex ideas, your writing comes across more clearly and is easier to understand. This technique also helps you know which details are necessary up front and which can wait until later .

3 Consider what background information your reader needs

Don’t take your own experience for granted. By this point in the writing process , you’ve probably already finished your research, which means you’re somewhat of an expert on the topic. Think back to what it was like before you learned: What did you wish you had known then?

Even if your topic is abstract, such as an ethical debate, consider including some context on the debate itself. How long has the ethical debate been happening? Was there a specific event that started it? Information like this can help set the scene so your reader doesn’t feel like they’re missing something.

4 Think of a good hook

Writing a hook can be the most difficult part of writing an introduction because it calls for some creativity. While the rest of your paper might be presenting fact after fact, the hook in your introduction often requires creating something from nothing.

Luckily, there are already plenty of tried-and-true strategies for how to start an essay . If you’re not feeling very creative, you can use a method that’s already been proven effective.

Just remember that the best hooks create an emotional connection—which emotion is up to you and your topic.

5 Write a rough draft of your introduction without pressure

It’s normal to clam up when writing a rough draft of your introduction. After all, the introduction always comes first, so it’s the first thing you write when you finally begin.

As explained in our guide to writing a rough draft , the best advice is not to pressure yourself. It’s OK to write something that’s messy—that’s what makes this draft rough . The idea here is to get words on paper that make your point. They don’t have to be the perfect words; that’s what revisions are for.

At the beginning, just worry about saying what needs to be said. Get down your hook and thesis statement, and background information if necessary, without worrying about how it sounds. You’ll be able to fix the problems later.

6 Revise your introduction after you’ve written your whole paper.

We recommend finishing the first draft of your entire paper before revising the introduction. You may make some changes in your paper’s structure when writing the first draft, and those changes should be reflected in the introduction.

After the first draft, it’s easier to focus on minutiae like word choice and sentence structure, not to mention finding spelling and grammar mistakes.

Introduction for an essay example

While other kids’ memories of circuses are happy and fun, what I recall most from my first time at a circus was feeling sorry for the animals—I can still remember the sadness in their eyes. [HOOK] Although animal rights in the circus have come a long way, their treatment of animals even under the new laws is still cruelty plain and simple. [BACKGROUND] The way circuses abuse animals needs to be abolished immediately, and we need to entirely rethink the way we use animals for entertainment. [THESIS STATEMENT]

Introduction for a research paper example

What would happen to humanity if everyone just stopped having babies? [HOOK] Although more endemic in some places than others, the global decline in birth rates has become a major issue since the end of the pandemic. [BACKGROUND] My research here shows not only that birth rates are declining all over the world, but also that unless the threats are addressed, these drastic declines will only get worse. [THESIS STATEMENT]

Introduction FAQs

An introduction is the first paragraph in an essay or research paper. It prepares the reader for what follows.

What’s the purpose of an introduction?

The goal of the introduction is to both provide the necessary context for the topic so the reader can follow along and also create an emotional connection so the reader wants to keep reading.

What should an introduction include?

An introduction should include three things: a hook to interest the reader, some background on the topic so the reader can understand it, and a thesis statement that clearly and quickly summarizes your main point.

how to write an introduction paragraph for a thesis paper

How to Write a Research Paper Introduction (with Examples)

Table of Contents

The research paper introduction section, along with the Title and Abstract, can be considered the face of any research paper. The following article is intended to guide you in organizing and writing the research paper introduction for a quality academic article or dissertation.

The research paper introduction aims to present the topic to the reader. A study will only be accepted for publishing if you can ascertain that the available literature cannot answer your research question. So it is important to ensure that you have read important studies on that particular topic, especially those within the last five to ten years, and that they are properly referenced in this section. 1

What should be included in the research paper introduction is decided by what you want to tell readers about the reason behind the research and how you plan to fill the knowledge gap. The best research paper introduction provides a systemic review of existing work and demonstrates additional work that needs to be done. It needs to be brief, captivating, and well-referenced; a well-drafted research paper introduction will help the researcher win half the battle.

The introduction for a research paper is where you set up your topic and approach for the reader. It has several key goals:

Present your research topic
Capture reader interest
Summarize existing research
Position your own approach
Define your specific research problem and problem statement
Highlight the novelty and contributions of the study
Give an overview of the paper’s structure

The research paper introduction can vary in size and structure depending on whether your paper presents the results of original empirical research or is a review paper. Some research paper introduction examples are only half a page while others are a few pages long. In many cases, the introduction will be shorter than all of the other sections of your paper; its length depends on the size of your paper as a whole.

What is the introduction for a research paper?

The introduction in a research paper is placed at the beginning to guide the reader from a broad subject area to the specific topic that your research addresses. They present the following information to the reader

Scope: The topic covered in the research paper
Context: Background of your topic
Importance: Why your research matters in that particular area of research and the industry problem that can be targeted

Why is the introduction important in a research paper?

The research paper introduction conveys a lot of information and can be considered an essential roadmap for the rest of your paper. A good introduction for a research paper is important for the following reasons:

It stimulates your reader’s interest: A good introduction section can make your readers want to read your paper by capturing their interest. It informs the reader what they are going to learn and helps determine if the topic is of interest to them.
It helps the reader understand the research background: Without a clear introduction, your readers may feel confused and even struggle when reading your paper. A good research paper introduction will prepare them for the in-depth research to come. It provides you the opportunity to engage with the readers and demonstrate your knowledge and authority on the specific topic.
It explains why your research paper is worth reading: Your introduction can convey a lot of information to your readers. It introduces the topic, why the topic is important, and how you plan to proceed with your research.
It helps guide the reader through the rest of the paper: The research paper introduction gives the reader a sense of the nature of the information that will support your arguments and the general organization of the paragraphs that will follow.

What are the parts of introduction in the research?

A good research paper introduction section should comprise three main elements: 2

What is known: This sets the stage for your research. It informs the readers of what is known on the subject.
What is lacking: This is aimed at justifying the reason for carrying out your research. This could involve investigating a new concept or method or building upon previous research.
What you aim to do: This part briefly states the objectives of your research and its major contributions. Your detailed hypothesis will also form a part of this section.

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Peace Alemede, Student, University of Ilorin

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How to write a research paper introduction?

The first step in writing the research paper introduction is to inform the reader what your topic is and why it’s interesting or important. This is generally accomplished with a strong opening statement. The second step involves establishing the kinds of research that have been done and ending with limitations or gaps in the research that you intend to address.

Finally, the research paper introduction clarifies how your own research fits in and what problem it addresses. If your research involved testing hypotheses, these should be stated along with your research question. The hypothesis should be presented in the past tense since it will have been tested by the time you are writing the research paper introduction.

The following key points, with examples, can guide you when writing the research paper introduction section:

1. Introduce the research topic:

Highlight the importance of the research field or topic
Describe the background of the topic
Present an overview of current research on the topic

Example: The inclusion of experiential and competency-based learning has benefitted electronics engineering education. Industry partnerships provide an excellent alternative for students wanting to engage in solving real-world challenges. Industry-academia participation has grown in recent years due to the need for skilled engineers with practical training and specialized expertise. However, from the educational perspective, many activities are needed to incorporate sustainable development goals into the university curricula and consolidate learning innovation in universities.

2. Determine a research niche:

Reveal a gap in existing research or oppose an existing assumption
Formulate the research question

Example: There have been plausible efforts to integrate educational activities in higher education electronics engineering programs. However, very few studies have considered using educational research methods for performance evaluation of competency-based higher engineering education, with a focus on technical and or transversal skills. To remedy the current need for evaluating competencies in STEM fields and providing sustainable development goals in engineering education, in this study, a comparison was drawn between study groups without and with industry partners.

3. Place your research within the research niche:

State the purpose of your study
Highlight the key characteristics of your study
Describe important results
Highlight the novelty of the study.
Offer a brief overview of the structure of the paper.

Example: The study evaluates the main competency needed in the applied electronics course, which is a fundamental core subject for many electronics engineering undergraduate programs. We compared two groups, without and with an industrial partner, that offered real-world projects to solve during the semester. This comparison can help determine significant differences in both groups in terms of developing subject competency and achieving sustainable development goals.

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With Paperpal, create a research paper introduction effortlessly. In this step-by-step guide, we’ll walk you through how Paperpal transforms your initial ideas into a polished and publication-ready introduction.

How to use Paperpal to write the Introduction section

Step 1: Sign up on Paperpal and click on the Copilot feature, under this choose Outlines > Research Article > Introduction

Step 2: Add your unstructured notes or initial draft, whether in English or another language, to Paperpal, which is to be used as the base for your content.

Step 3: Fill in the specifics, such as your field of study, brief description or details you want to include, which will help the AI generate the outline for your Introduction.

Step 4: Use this outline and sentence suggestions to develop your content, adding citations where needed and modifying it to align with your specific research focus.

Step 5: Turn to Paperpal’s granular language checks to refine your content, tailor it to reflect your personal writing style, and ensure it effectively conveys your message.

You can use the same process to develop each section of your article, and finally your research paper in half the time and without any of the stress.

Frequently Asked Questions

What is the purpose of the introduction in research papers.

The purpose of the research paper introduction is to introduce the reader to the problem definition, justify the need for the study, and describe the main theme of the study. The aim is to gain the reader’s attention by providing them with necessary background information and establishing the main purpose and direction of the research.

How long should the research paper introduction be?

The length of the research paper introduction can vary across journals and disciplines. While there are no strict word limits for writing the research paper introduction, an ideal length would be one page, with a maximum of 400 words over 1-4 paragraphs. Generally, it is one of the shorter sections of the paper as the reader is assumed to have at least a reasonable knowledge about the topic. 2

For example, for a study evaluating the role of building design in ensuring fire safety, there is no need to discuss definitions and nature of fire in the introduction; you could start by commenting upon the existing practices for fire safety and how your study will add to the existing knowledge and practice.

What should be included in the research paper introduction?

When deciding what to include in the research paper introduction, the rest of the paper should also be considered. The aim is to introduce the reader smoothly to the topic and facilitate an easy read without much dependency on external sources. 3

Below is a list of elements you can include to prepare a research paper introduction outline and follow it when you are writing the research paper introduction.

Topic introduction: This can include key definitions and a brief history of the topic.
Research context and background: Offer the readers some general information and then narrow it down to specific aspects.
Details of the research you conducted: A brief literature review can be included to support your arguments or line of thought.
Rationale for the study: This establishes the relevance of your study and establishes its importance.
Importance of your research: The main contributions are highlighted to help establish the novelty of your study
Research hypothesis: Introduce your research question and propose an expected outcome. Organization of the paper: Include a short paragraph of 3-4 sentences that highlights your plan for the entire paper

Should I include citations in the introduction for a research paper?

Cite only works that are most relevant to your topic; as a general rule, you can include one to three. Note that readers want to see evidence of original thinking. So it is better to avoid using too many references as it does not leave much room for your personal standpoint to shine through.

Citations in your research paper introduction support the key points, and the number of citations depend on the subject matter and the point discussed. If the research paper introduction is too long or overflowing with citations, it is better to cite a few review articles rather than the individual articles summarized in the review.

A good point to remember when citing research papers in the introduction section is to include at least one-third of the references in the introduction.

Should I provide a literature review in the research paper introduction?

The literature review plays a significant role in the research paper introduction section. A good literature review accomplishes the following:

Introduces the topic
Establishes the study’s significance
Provides an overview of the relevant literature
Provides context for the study using literature
Identifies knowledge gaps

However, remember to avoid making the following mistakes when writing a research paper introduction:

Do not use studies from the literature review to aggressively support your research
Avoid direct quoting
Do not allow literature review to be the focus of this section. Instead, the literature review should only aid in setting a foundation for the manuscript.

Key points to remember

Remember the following key points for writing a good research paper introduction: 4

Avoid stuffing too much general information: Avoid including what an average reader would know and include only that information related to the problem being addressed in the research paper introduction. For example, when describing a comparative study of non-traditional methods for mechanical design optimization, information related to the traditional methods and differences between traditional and non-traditional methods would not be relevant. In this case, the introduction for the research paper should begin with the state-of-the-art non-traditional methods and methods to evaluate the efficiency of newly developed algorithms.
Avoid packing too many references: Cite only the required works in your research paper introduction. The other works can be included in the discussion section to strengthen your findings.
Avoid extensive criticism of previous studies: Avoid being overly critical of earlier studies while setting the rationale for your study. A better place for this would be the Discussion section, where you can highlight the advantages of your method.
Avoid describing conclusions of the study: When writing a research paper introduction remember not to include the findings of your study. The aim is to let the readers know what question is being answered. The actual answer should only be given in the Results and Discussion section.

To summarize, the research paper introduction section should be brief yet informative. It should convince the reader the need to conduct the study and motivate him to read further. If you’re feeling stuck or unsure, choose trusted AI academic writing assistants like Paperpal to effortlessly craft your research paper introduction and other sections of your research article.

Jawaid, S. A., & Jawaid, M. (2019). How to write introduction and discussion. Saudi Journal of Anaesthesia, 13(Suppl 1), S18.
Dewan, P., & Gupta, P. (2016). Writing the title, abstract and introduction: Looks matter!. Indian pediatrics, 53, 235-241.
Cetin, S., & Hackam, D. J. (2005). An approach to the writing of a scientific Manuscript1. Journal of Surgical Research, 128(2), 165-167.
Bavdekar, S. B. (2015). Writing introduction: Laying the foundations of a research paper. Journal of the Association of Physicians of India, 63(7), 44-6.

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