Modeling Epidemics: Functions to Evaluate Intervention Strategies
Created byDavid Robertson
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Modeling Epidemics: Functions to Evaluate Intervention Strategies

Grade 11Math15 days
In this project, students will create and analyze mathematical models to understand and predict the spread of infectious diseases. They will use functions to simulate epidemics, evaluate intervention strategies like vaccination and quarantine, and forecast epidemic trends. Students will also reflect on the limitations of mathematical models in representing real-world epidemics and discuss the effectiveness of different intervention strategies.
Epidemic ModelingMathematical FunctionsIntervention StrategiesDisease TransmissionSimulationForecastingMitigation
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Inquiry Framework

Question Framework

Driving Question

The overarching question that guides the entire project.How can we use mathematical models to understand, predict, and mitigate the spread of infectious diseases in our community?

Essential Questions

Supporting questions that break down major concepts.
  • How can mathematical functions model the spread of a disease through a population?
  • What factors influence the rate of disease transmission, and how can these be represented mathematically?
  • How can different intervention strategies (e.g., vaccination, quarantine) be modeled mathematically?
  • How can we use mathematical models to predict the peak of an epidemic and the total number of infected individuals?
  • What are the limitations of using mathematical models to represent real-world epidemics?

Standards & Learning Goals

Learning Goals

By the end of this project, students will be able to:
  • Students will be able to create mathematical models that represent the spread of infectious diseases.
  • Students will be able to interpret and analyze mathematical models of epidemics.
  • Students will be able to evaluate the effectiveness of different intervention strategies using mathematical models.
  • Students will be able to predict the peak of an epidemic and the total number of infected individuals using mathematical models.
  • Students will be able to understand the limitations of mathematical models in representing real-world epidemics.

Common Core Standards

HSA-SSE.A
Primary
Interpret the structure of expressionsReason: The project requires students to understand and manipulate mathematical expressions to model disease spread.
HSF-IF.C
Primary
Analyze functions using different representationsReason: Students will analyze functions to understand the dynamics of disease transmission and the impact of interventions.

Entry Events

Events that will be used to introduce the project to students

Create a Public Service Announcement

Challenge students to create a PSA to educate the public. The PSA needs to include a mathematical model.
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Portfolio Activities

Portfolio Activities

These activities progressively build towards your learning goals, with each submission contributing to the student's final portfolio.
Activity 1

Epidemic Equation Exploration

Students will explore basic mathematical expressions and functions that are commonly used to model the spread of diseases. This activity introduces key variables and parameters involved in epidemic modeling.

Steps

Here is some basic scaffolding to help students complete the activity.
1. Research common mathematical functions used in epidemic modeling (e.g., exponential, logistic).
2. Define key variables and parameters (e.g., infection rate, recovery rate, population size).
3. Create a table summarizing the functions, variables, and parameters with their real-world interpretations.

Final Product

What students will submit as the final product of the activityA detailed table explaining mathematical functions, variables, and parameters used in epidemic modeling.

Alignment

How this activity aligns with the learning objectives & standardsHSA-SSE.A (Interpret the structure of expressions)
Activity 2

Simulating the Spread: Building a Basic Model

Students will construct a basic mathematical model (e.g., using spreadsheets or coding) to simulate the spread of a hypothetical disease in a population. They will manipulate variables to observe changes in disease transmission.

Steps

Here is some basic scaffolding to help students complete the activity.
1. Choose a suitable tool for modeling (e.g., spreadsheet software, Python).
2. Input initial values for variables (e.g., initial infected population, infection rate).
3. Run the simulation and observe the changes in the number of infected individuals over time.
4. Graphically represent the simulation results.

Final Product

What students will submit as the final product of the activityA functional simulation model and a graph showing the spread of the disease over time.

Alignment

How this activity aligns with the learning objectives & standardsHSF-IF.C (Analyze functions using different representations)
Activity 3

Intervention Investigation: Testing Mitigation Strategies

Students will modify their basic model to incorporate intervention strategies such as vaccination or quarantine. They will analyze the impact of these strategies on the spread of the disease.

Steps

Here is some basic scaffolding to help students complete the activity.
1. Incorporate a new variable representing the vaccination rate or quarantine effectiveness.
2. Adjust the model to reflect the impact of the intervention on disease transmission.
3. Run the simulation with different intervention scenarios.
4. Compare the outcomes of different intervention strategies.

Final Product

What students will submit as the final product of the activityA comparative analysis of different intervention strategies and their impact on disease spread, presented with graphs and explanations.

Alignment

How this activity aligns with the learning objectives & standardsHSF-IF.C (Analyze functions using different representations)
Activity 4

Predicting the Peak: Forecasting Epidemic Trends

Using their refined models, students will predict the peak of an epidemic and the total number of infected individuals. They will discuss the limitations and uncertainties of their predictions.

Steps

Here is some basic scaffolding to help students complete the activity.
1. Use the simulation to forecast the peak of the epidemic.
2. Estimate the total number of infected individuals during the epidemic.
3. Discuss the factors that could affect the accuracy of their predictions.

Final Product

What students will submit as the final product of the activityA report with predictions for the epidemic peak and total infections, along with a discussion of the model's limitations.

Alignment

How this activity aligns with the learning objectives & standardsHSA-SSE.A (Interpret the structure of expressions), HSF-IF.C (Analyze functions using different representations)
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Rubric & Reflection

Portfolio Rubric

Grading criteria for assessing the overall project portfolio

Mathematical Modeling of Epidemics

Category 1

Mathematical Foundations

Understanding and application of mathematical functions, variables, and parameters used in epidemic modeling (HSA-SSE.A).
Criterion 1

Function Identification and Interpretation

Ability to correctly identify and interpret relevant mathematical functions (e.g., exponential, logistic) and their components in the context of epidemic modeling.

Exemplary
4 Points

Accurately identifies and explains the role of all relevant functions, variables, and parameters with sophisticated understanding and insightful connections to real-world epidemic dynamics.

Proficient
3 Points

Correctly identifies and explains most relevant functions, variables, and parameters with a clear understanding of their role in epidemic modeling.

Developing
2 Points

Identifies some relevant functions, variables, and parameters but demonstrates a limited understanding of their role in epidemic modeling.

Beginning
1 Points

Struggles to identify relevant functions, variables, and parameters and demonstrates a minimal understanding of their role in epidemic modeling.

Criterion 2

Mathematical Expression and Manipulation

Skill in expressing and manipulating mathematical expressions to represent disease spread and interventions.

Exemplary
4 Points

Demonstrates sophisticated skill in expressing and manipulating complex mathematical expressions to accurately represent disease spread and interventions.

Proficient
3 Points

Effectively expresses and manipulates mathematical expressions to represent disease spread and interventions.

Developing
2 Points

Shows emerging skill in expressing and manipulating mathematical expressions, but with some inaccuracies or inconsistencies.

Beginning
1 Points

Struggles to express and manipulate mathematical expressions to represent disease spread and interventions, requiring significant guidance.

Category 2

Simulation and Modeling

Construction, execution, and analysis of a simulation model to represent disease spread (HSF-IF.C).
Criterion 1

Model Construction and Execution

Ability to build a functional simulation model using appropriate tools and execute it effectively.

Exemplary
4 Points

Constructs a sophisticated and accurate simulation model using appropriate tools, executes it flawlessly, and demonstrates advanced understanding of the simulation process.

Proficient
3 Points

Constructs a functional simulation model using appropriate tools and executes it effectively with minimal errors.

Developing
2 Points

Constructs a partially functional simulation model but encounters some difficulties in execution or tool usage.

Beginning
1 Points

Struggles to construct a functional simulation model and requires significant assistance with tool usage and execution.

Criterion 2

Data Representation and Visualization

Effectiveness in representing and visualizing simulation results (e.g., through graphs) to show disease trends.

Exemplary
4 Points

Presents simulation results with exceptional clarity and insight, using advanced visualization techniques to highlight key trends and patterns.

Proficient
3 Points

Effectively represents simulation results through clear and informative graphs that accurately show disease trends.

Developing
2 Points

Represents simulation results with some limitations in clarity or accuracy, showing a basic understanding of disease trends.

Beginning
1 Points

Struggles to effectively represent simulation results, with unclear or inaccurate graphs that provide minimal insight into disease trends.

Category 3

Intervention Analysis

Evaluation of the impact of intervention strategies (e.g., vaccination, quarantine) on disease spread (HSF-IF.C).
Criterion 1

Intervention Incorporation

Ability to incorporate intervention strategies into the simulation model and adjust parameters accordingly.

Exemplary
4 Points

Skillfully incorporates multiple intervention strategies into the simulation model, accurately adjusts parameters to reflect their impact, and provides insightful justifications for the chosen values.

Proficient
3 Points

Effectively incorporates intervention strategies into the simulation model and adjusts parameters appropriately to reflect their impact.

Developing
2 Points

Incorporates intervention strategies into the simulation model with some inaccuracies or inconsistencies in parameter adjustment.

Beginning
1 Points

Struggles to incorporate intervention strategies into the simulation model and requires significant assistance with parameter adjustment.

Criterion 2

Comparative Analysis

Thoroughness in comparing the outcomes of different intervention strategies and drawing meaningful conclusions.

Exemplary
4 Points

Conducts a comprehensive comparative analysis of different intervention strategies, drawing insightful conclusions that are well-supported by evidence from the simulation results and relevant research.

Proficient
3 Points

Provides a clear and well-reasoned comparative analysis of different intervention strategies, drawing meaningful conclusions supported by evidence from the simulation results.

Developing
2 Points

Compares the outcomes of different intervention strategies but provides limited analysis or weak support for conclusions.

Beginning
1 Points

Struggles to compare the outcomes of different intervention strategies and fails to draw meaningful conclusions.

Category 4

Prediction and Limitations

Forecasting epidemic trends and discussing the limitations of the model (HSA-SSE.A, HSF-IF.C).
Criterion 1

Epidemic Forecasting

Accuracy in predicting the peak of the epidemic and the total number of infected individuals.

Exemplary
4 Points

Provides highly accurate predictions for the epidemic peak and total infections, demonstrating a sophisticated understanding of the model's dynamics and its sensitivity to different parameters.

Proficient
3 Points

Provides reasonably accurate predictions for the epidemic peak and total infections, demonstrating a solid understanding of the model's behavior.

Developing
2 Points

Provides predictions for the epidemic peak and total infections with some inaccuracies, showing a basic understanding of the model.

Beginning
1 Points

Struggles to provide reasonable predictions for the epidemic peak and total infections, demonstrating a limited understanding of the model.

Criterion 2

Limitations Discussion

Depth and critical analysis of the limitations and uncertainties of the mathematical model.

Exemplary
4 Points

Provides a comprehensive and insightful discussion of the model's limitations, including a critical analysis of its underlying assumptions and potential sources of error.

Proficient
3 Points

Discusses the model's limitations with clarity and provides reasonable explanations for potential uncertainties.

Developing
2 Points

Acknowledges the model's limitations but provides a superficial or incomplete discussion of potential uncertainties.

Beginning
1 Points

Fails to adequately address the model's limitations or potential uncertainties.

Reflection Prompts

End-of-project reflection questions to get students to think about their learning
Question 1

How did creating mathematical models deepen your understanding of epidemic spread?

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Question 2

What were the biggest challenges you faced when building your epidemic models, and how did you overcome them?

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Question 3

To what extent do you think mathematical models can accurately represent real-world epidemics?

Scale
Required
Question 4

How effective were the different intervention strategies you tested in your model?

Multiple choice
Required
Options
Highly effective
Moderately effective
Slightly effective
Not effective
Question 5

If you were to continue working on this project, what aspects of epidemic modeling would you explore further?

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