Understanding CER: Claim Evidence Reasoning for Scientific Investigations

Introduction

Curiosity is a powerful tool for learning, and when paired with a structured approach like the Claim Evidence Reasoning (CER) framework, it can lead to deeper insights in scientific investigations. In this article, we will explore the concept of CER in detail, using the fascinating example of red-eared sliders and their winter survival strategies. Whether you are a science teacher, student, or simply curious about how we can validate claims in life, understanding CER can enhance your analytical skills.

The Importance of Curiosity

Curiosity is often innate, especially in children, but as we grow, we sometimes stop asking questions. This phenomenon can lead to a stagnation in learning and understanding. Engaging in curious inquiries not only keeps our minds active but also opens new avenues for knowledge. For example, I’ve always been intrigued by the behavior of red-eared slider turtles that used to bask in the pond near my childhood home in Texas. Where do these turtles go during winter? This question sparked countless thoughts about their survival strategies and led me to investigate further.

The Scientific Process

In our exploration of curious questions, we must recognize that the scientific process is rarely linear. Scientists often utilize a flexible approach to inquiry. In our "Nature of Science" video, we discuss fundamental steps to plan scientific investigations and emphasize that there is no singular method. Acknowledging that conclusions derive from collected evidence is critical for any researcher.

Introduction to CER

The Claim Evidence Reasoning (CER) framework serves as a compelling method for articulating scientific explanations. It is a versatile tool that applies not just to science but across multiple disciplines. Here’s a breakdown of the components:

Claim - A statement that addresses the inquiry.
Evidence - Supporting data that substantiates the claim.
Reasoning - Explanation of how or why the evidence backs the claim.

Applying CER: Case Study of Red-Eared Sliders

In our investigation of the behavior of red-eared sliders in winter, we can employ the CER framework effectively.

The Inquiry

Question: What happens to red-eared sliders when the pond freezes over?

Developing a Hypothesis

Before diving into data collection, it’s imperative to formulate a hypothesis based on preliminary knowledge. Given what we know about turtle behavior and physiology, a potential hypothesis could be: “Red-eared sliders remain submerged in the pond during winter.”

Gathering Evidence

To support our hypothesis, we need reliable evidence. The following methods can be considered:

Direct Observations: Note the turtles’ behavior throughout the fall and winter.
Video Footage: Set up cameras to monitor changes without disturbing their habitat.
Literature Research: Consult peer-reviewed studies regarding turtle behavior during cold months.

Types of Evidence to Consider

Observations documenting turtles remaining underwater when the surface freezes.
Using scientific research from credible journals that addresses turtle brumation processes—similar to hibernation but specific to the physiological adaptations of reptiles.

Crafting the Conclusion with CER

Using the data collected from our observations and research, we can articulate our conclusion using the CER framework:

Claim: Red-eared sliders remain submerged in the pond and brumate when the surface freezes.
Evidence: Observations indicate turtles remain inactive in water, and studies show that they can slow their metabolic rates, enduring low oxygen levels. Peer-reviewed articles substantiate this by elaborating on brumation in freshwater turtles.
Reasoning: The data confirms that the turtles’ inactivity signifies brumation, thereby justifying that they survive submerged through winter. The evidence aligns with the biological definitions and shows the turtles are alive post-winter, proving that they effectively manage their survival.

Real-Life Applications of CER

The utility of the CER framework transcends academic science. Consider the source of claims you encounter daily:

In Conversations: Evaluate claims made by people – do they provide evidence?
Digital Information: Assess the reliability of articles or posts by investigating the sourced evidence and the reasoning behind those claims.

Using CER in everyday discourse sharpens critical thinking and fosters informed discussions.

Conclusion

Curiosity drives us to ask essential questions, and frameworks such as Claim Evidence Reasoning enable us to explore those questions effectively. By applying CER, we can organize our conclusions methodically in scientific inquiries like the survival of red-eared sliders in winter. Remember, whether investigating turtles or engaging in daily conversations, always scrutinize claims with a critical lens using the CER framework.

As we foster curiosity, we also develop the ability to dissect and analyze information, which is increasingly vital in a world full of claims and counterclaims. Embrace your curiosity, and stay persistent in seeking evidence and understanding!