Modeling in 3-Acts

The K-12 enVision® Series Modeling in 3-Acts

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Students Go Beyond Answers: Grow Mathematical Minds

The enVision K-12 Modeling in 3-Acts lessons present students with the opportunity to model conceptual thinking in real-world situations, helping them develop modeling skills and demonstrate mathematical thinking. Lessons require students to identify essential variables, formulate models from those variables, perform operations using the model, interpret the results of those operations, and validate the conclusions of those results. It all takes place within three simple acts.

Modeling in 3-Acts Helps Students Think Mathematically

Act 1: The Hook
A video engages students, followed by a brainstorm of possible question/answer situations.

Act 2: The Model
Students develop mathematical models to arrive at a solution.

Act 3: The Resolution
A video helps learners explain differences between their own conjectures and the actual solution.


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Try a 3-Act Math Modeling Lesson!

Download these free resources for your classroom.

  • Grades K-5
  • Grades 6-8
  • A|G|A & Integrated Math

Grade K, Lesson 2-14

3-Act Math Modeling Lesson: By the Handful

  • Teacher’s Edition Pages
  • Student’s Edition Pages
  • Act 1 Video
  • Act 2 Images
  • Act 3 Video


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Grade 1, Lesson 3-7

3-Act Math Modeling Lesson: Go for a Spin

  • Teacher’s Edition Pages
  • Student’s Edition Pages
  • Act 1 Video
  • Act 2 Images
  • Act 3 Video


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Grade 2, Lesson 2-12

3-Act Math Modeling Lesson: Piled Up

  • Teacher’s Edition Pages
  • Student’s Edition Pages
  • Act 1 Video
  • Act 2 Images
  • Act 3 Video


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Grade 3, Lesson 6-11

Grade 3, Lesson 6-11

  • Teacher’s Edition Pages
  • Student’s Edition Pages
  • Act 1 Video
  • Act 2 Images
  • Act 3 Video


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Grade 4, Lesson 10-4

3-Act Math Modeling Lesson: A Pint's a Pound

  • Teacher’s Edition Pages
  • Student’s Edition Pages
  • Act 1 Video
  • Act 2 Images
  • Act 3 Video


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Grade 5, Lesson 6-9

3-Act Math Modeling Lesson: Morning Commute

  • Teacher’s Edition Pages
  • Student’s Edition Pages
  • Act 1 Video
  • Act 2 Images
  • Act 3 Video


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Grade 6, Lesson 10-2

3-Act Math Modeling Lesson: Checking a Bag

  • Teacher’s Edition Pages
  • Student’s Edition Pages
  • Act 1 Video
  • Act 2 Images
  • Act 3 Video


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Grade 7, Lesson 2-7

3-Act Math Modeling Lesson: Mixin’ It Up

  • Teacher’s Edition Pages
  • Student’s Edition Pages
  • Act 1 Video
  • Act 2 Images
  • Act 3 Video


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Grade 8, Lesson 2-6

3-Act Math Modeling Lesson: Ups and Downs

  • Teacher’s Edition Pages
  • Student’s Edition Pages
  • Act 1 Video
  • Act 2 Images
  • Act 3 Video


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Algebra 1 or Integrated Math I

Mathematical Modeling in 3 Acts Lesson: The Express Lane

  • Teacher’s Edition Pages
  • Student’s Edition Pages
  • Act 1 Video
  • Act 2 Images
  • Act 3 Video


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Geometry or Integrated Math II

Mathematical Modeling in 3 Acts Lesson: Earth Watch

  • Teacher’s Edition Pages
  • Student’s Edition Pages
  • Act 1 Video
  • Act 2 Images
  • Act 3 Video


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Algebra 2 or Integrated Math III

Mathematical Modeling in 3 Acts Lesson: The Snack Shack

  • Teacher’s Edition Pages
  • Student’s Edition Pages
  • Act 1 Video
  • Act 2 Images
  • Act 3 Video


Download Here
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