Algebra 2 End of Year Project | Exponential Growth: Coronavirus

Distinguish exponential growth from linear growth using a real-world data graph.

Interpret the y-intercept and slope of an exponential growth graph in the context of a real-world quantity.

Evaluate the strengths and limitations of an exponential growth model, including its assumption of a constant growth rate.

Communicate a mathematical argument in writing or presentation form, using a graph as supporting evidence.

Share the included student sample and slideshow with students before they begin, since both work through the full project outline and can model the expected depth of explanation.

Use the included grading rubric image to set expectations for each section (growth type, graph, axes, disease-spread discussion, pros/cons, conclusion) before students start writing.

Because the case data in the student samples is dated to a specific 2020 outbreak window, consider having students source current data for their own graph rather than reusing the sample's numbers, to keep the underlying real-world data current.

Exponential vs. linear growth comparison — students graph and contrast the two growth types using real case data.

Graph interpretation — students explain what the axes, y-intercept, and slope of an exponential graph represent in context.

Model evaluation — students weigh the pros and cons of using an exponential model to predict real-world change.

Mathematical writing/presentation — students communicate their analysis in a structured written or slideshow format.