The Devil and Daniel Webster
http://illuminations.nctm.org/LessonDetail.aspx?ID=L288
A lesson plan for Grades 9–12 Algebra 1 and English III
This interdisciplinary lesson allows students to examine a recursive sequence in a game between the Devil and Daniel Webster. Illuminations provides an activity sheet, solutions for the activity, a link to a helpful spreadsheet, and detailed instructions for completing the lesson.
Students will:
- Use recursive or iterative forms to represent relationships.
- Approximate and interpret rates of change from numerical data.
- Draw reasonable conclusions about a situation being modeled.
NCTM Standards and Expectations:
- Generalize patterns using explicitly defined and recursively defined functions.
- Analyze functions of one variable by investigating rates of change, intercepts, zeros, asymptotes, and local and global behavior.
- Understand relations and functions and select, convert flexibly among, and use various representations for them.
North Carolina Curriculum Alignment
English Language Arts (2004)
Grade 11 — English III
- Goal 5: The learner will interpret and evaluate representative texts to deepen understanding of literature of the United States.
- Objective 5.02: Analyze the relationships among United States authors and their works by:
- making and supporting valid responses about the text through references to other works and authors.
-comparing texts to show similarities or differences in themes, characters, or ideas.
- Objective 5.02: Analyze the relationships among United States authors and their works by:
Mathematics (2004)
Grades 9–12 — Algebra 1
- Goal 1: Number and Operations - The learner will perform operations with numbers and expressions to solve problems.
- Objective 1.02: Use formulas and algebraic expressions, including iterative and recursive forms, to model and solve problems.
- Objective 1.03: Model and solve problems using direct variation
- Goal 4: Algebra - The learner will use relations and functions to solve problems.
- Objective 4.01: Use linear functions or inequalities to model and solve problems; justify results.
- Solve using tables, graphs, and algebraic properties.
- Interpret constants and coefficients in the context of the problem.
- Objective 4.01: Use linear functions or inequalities to model and solve problems; justify results.



