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This Hardy-Weinberg lab comes with a thorough and detailed introduction as well as specific instructions for students. In my lab classroom we are not allowed to use any food, so I made laminated cards for the two phenotypes explored in this lab. You can find images of fish online, draw them yourselves or substitute colored beans or candy for the two different phenotypes. The lab is a data driven lab that includes individual data, class set data and then asks them to graph their trends. The lab is comprehensive with an analysis section. I teach in a school with 55 minute instructional blocks and my students complete this lab (start to finish) in two class days. My students are in lab groups of 3, but this is also suitable for larger groups of 4 or smaller groups of 2. The only materials needed are super easy for any classroom teacher to obtain or modify! Also included is the teacher answer key. Adjust the grading scale/point values as needed for your course.