The Power of Claim Evidence Reasoning How to Strengthen Your Argument

As a writer, one of the most important skills to have is the ability to make a strong and convincing argument. Whether you are writing an essay, a persuasive speech, or a business proposal, being able to back up your claims with solid evidence and logical reasoning is crucial. This is where claim evidence reasoning comes in – a powerful framework that can help you structure and strengthen your arguments. In this article, we will explore the concept of claim evidence reasoning, its benefits, and how you can use it to enhance your writing.

What is Claim Evidence Reasoning?

Claim evidence reasoning (CER) is a structured approach used to build and defend an argument. It involves making a claim, providing evidence to support that claim, and explaining the reasoning behind why the evidence supports the claim. This process is often used in science and math classes to help students develop critical thinking skills, but it can also be applied to any type of writing.

How to Use Claim Evidence Reasoning

Using CER in your writing can greatly improve the strength and persuasiveness of your arguments. Here’s a breakdown of how to use CER:

  1. Make a Claim:
    The first step in CER is to make a clear and specific claim. A claim is a statement that expresses your position on a topic. It should be concise and arguable, meaning that there should be evidence to support it and others may hold a different viewpoint.
  1. Provide Evidence:
    After stating your claim, you need to provide evidence to support it. Evidence can come from various sources such as research studies, statistics, expert opinions, personal experiences, and examples. It is essential to use reliable and relevant evidence that directly relates to your claim.
  1. Explain the Reasoning:
    The final step in CER is to explain the reasoning behind how your evidence supports your claim. This is where you connect the dots and show why your evidence is relevant and valid in supporting your claim. Your reasoning should be logical, clear, and easy for the reader to follow.

Examples of Claim Evidence Reasoning

To better understand how CER works, let’s look at a few examples:

Example 1:
Claim: Regular exercise can improve overall health.
Evidence: According to a study published in the British Journal of Sports Medicine, regular exercise can reduce the risk of chronic diseases such as heart disease, diabetes, and certain types of cancer.
Reasoning: Exercise improves cardiovascular health, increases muscle strength, and helps maintain a healthy weight, all of which contribute to preventing chronic diseases.

Example 2:
Claim: Climate change is caused by human activities.
Evidence: The Intergovernmental Panel on Climate Change (IPCC) states that there is a 95% probability that human activities, such as burning fossil fuels, are the primary cause of climate change.
Reasoning: Human activities emit greenhouse gases that trap heat in the Earth’s atmosphere, leading to global warming and other effects that contribute to climate change.

Benefits of Using Claim Evidence Reasoning

There are several benefits to using CER in your writing:

  • Strengthens Your Argument:
    By following the CER framework, you are forced to think critically about your argument and ensure that it is well-supported and logical. This makes your argument more convincing and difficult to refute.
  • Organizes Your Thoughts:
    CER provides a clear and structured way to present your ideas, making it easier for both you and the reader to understand your argument. It also helps you stay on track and avoid getting sidetracked.
  • Encourages Critical Thinking:
    Using CER encourages you to analyze and evaluate evidence, make connections between ideas, and consider alternative viewpoints. This promotes critical thinking skills and can lead to more well-rounded arguments.
  • Increases Credibility:
    By backing up your claims with solid evidence and explaining the reasoning behind them, you are establishing yourself as a knowledgeable and credible writer. This can greatly enhance the trust and authority in your writing.

How to Use Claim Evidence Reasoning Effectively

To make the most out of CER, here are some tips to keep in mind:

  1. Use a Variety of Evidence:
    To strengthen your argument, it is essential to use a variety of evidence from different sources. This shows that you have thoroughly researched the topic and considered various perspectives.
  1. Be Objective:
    When using CER, it is crucial to remain impartial and present both sides of the argument. This adds credibility to your writing and shows that you have considered all viewpoints before making your claim.
  1. Address Counterarguments:
    Acknowledge and address potential counterarguments to your claim. This shows that you have considered alternative perspectives and strengthens your overall argument.
  1. Keep it Concise:
    CER is meant to be a concise and straightforward approach to building an argument. Avoid using unnecessary information or evidence that does not directly support your claim.

FAQs about Claim Evidence Reasoning

Here are some frequently asked questions about CER:

1. Is CER only used in science and math classes?

No, CER can be applied to any type of writing that requires making and defending an argument.

2. Can I make multiple claims in one piece of writing using CER?

Yes, you can make multiple claims as long as they are relevant and supported by evidence.

3. How do I know if my evidence is reliable?

It is essential to use evidence from credible and reputable sources. You can also look for peer-reviewed studies or consult with experts in the field.

4. Can I use CER in everyday conversations?

Yes, CER can be useful in everyday conversations when discussing any topic that requires making an argument.

5. Can CER be used in creative writing?

Yes, CER can be applied to creative writing when presenting an argument or making a point.


Claim evidence reasoning is a powerful tool that can greatly enhance the strength and persuasiveness of your arguments. By following this framework, you can organize your thoughts, strengthen your writing, and promote critical thinking skills. Remember to make a clear and specific claim, provide reliable evidence, and explain the reasoning behind your argument. With practice, CER can become a valuable asset in your writing arsenal.

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