CER (Claim, Evidence, Reasoning) in Biology

The speaker emphasizes the importance of curiosity, a quality often diminished as people age. This curiosity can lead to fascinating scientific investigations. The scientific process is often non-linear and not confined to a single universal method.

The video introduces the Claim, Evidence, Reasoning (CER) framework as a cross-curricular tool, particularly popular in science classrooms. It helps in developing reliable conclusions after an investigation by structuring explanations with a claim, supporting evidence, and the reasoning that connects them.

Using the example of red-eared sliders disappearing in winter, the speaker explains how to gather evidence. This includes qualitative data from observations (e.g., cameras in and around the pond, observing turtle inactivity) and thorough research from peer-reviewed scientific papers on freshwater turtle winter survival and brumation.

The speaker demonstrates how to structure a conclusion using CER for the turtle example. The claim is that red-eared sliders remain in the water and brumate during winter. The evidence includes observations of their continued presence and inactivity, combined with peer-reviewed research on brumation. The reasoning explains how this evidence supports the claim by defining brumation and its physiological effects.

The video concludes by highlighting the broader applicability of the CER framework. It encourages viewers to apply CER in daily life when encountering claims, whether in person or online, by questioning the evidence and the reasoning behind it.