Pesticide Resistance
Biology: Students will use mathematical models as evidence to construct an explanation for the process of evolution. Math: Students will discuss graphs that depict the rate of resistance for bugs to determine how the data might best be mathematically modeled.
Overview
Students examine pesticide resistance as evidence for evolution by natural selection, connecting biology and Algebra 1. After discussing when mortality is highest following a pesticide application, they complete a modeling activity on resistance and natural selection and read an article on the Colorado potato beetle. Groups then interpret graphs of insect mortality over time under different sprays. Using Desmos activities, students decide whether a linear or exponential function better fits the resistance data, and they test that choice with a regression model of their own data, explaining their reasoning in a Google Doc.
Lesson Objectives
- Biology: Students will use mathematical models as evidence to construct an explanation for the process of evolution. Math: Students will discuss graphs that depict the rate of resistance for bugs to determine how the data might best be mathematically modeled.
Standards
NGSS · 1
- HS-LS4-2Biological Evolution: Unity and Change: Construct an explanation based on evidence that the process of evolution primarily results from four factors: (1) the potential for a species to increase in number, (2) the heritable genetic variation of individuals in a species due to mutation and sexual reproduction, (3) competition for limited resources, and (4) the proliferation of those organisms that are better able to survive and reproduce in the environment.
CCSS Math · 1
- HSF-LE.A.1Distinguish between situations that can be modeled with linear functions and with exponential functions.
CCSS ELA · 1
- CCSS.ELA-LITERACY.ESL.11-12.1.ACome to discussions prepared, having read and researched material under study; explicitly draw on that preparation by referring to evidence from texts and other research on the topic or issue to stimulate a thoughtful, well-reasoned exchange of ideas.