Understand difference between functions modeling input/output pairs and using statistics to analyze bivariate data. Make assumptions to set up a mathematical model. Use a mathematical model Make predictions Understand limitations of a mathematical model. For the What Influences Temperature activity, consider finding out the latitude and average high temperature in September for your city. In this optional exploration in applied mathematics, students develop and use a mathematical model to predict temperature given the latitude of a location. The activities in this lesson provide students a chance to go more deeply and apply grade 8 mathematics to a real-world context. Students get a chance to engage in many aspects of mathematical modeling.