Lab 14 Variation in Traits: How Do Beetle Traits Vary Within and Across Species? is one lab from the NSTA Press book, Argument-Driven Inquiry in Life Science. This lab introduces students to the variation that occurs within beetle species and among closely related species by comparing three representative species. Students are provided with the opportunity to explore the ways beetles vary physically and how the variations relate to their environment. Lab 14 gives students the opportunity to examine how scientists use patterns to make sense of natural phenomena while using observations and inferences to support and/or refute ideas.
The investigation provides background content for the educator and comprehensive instructions for incorporating the lesson into the class. Secondary to the "Teacher Notes" is a student "Lab Handout" and "Checkout Questions" that can be used in its entirety or in segments. The introductory chapters and appendices also provide important guidance on implementing argument-based inquiry labs.