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  - Lesson 7
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  - Lesson 8
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  - Lesson 9
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    - Episode 7
  - Lesson 10
    - Episode 1
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    - Episode 4
    - Episode 5
  - Sasha and Keoni
- Proportions
  - Lesson 1
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
  - Lesson 2
  - Lesson 3
  - Lesson 4
  - Lesson 5
  - Lesson 6
  - Lesson 7
  - Kate and Christopher
- Algebraic Expressions
  - Lesson 1
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
  - Lesson 2
  - Lesson 3
    - Episode 1
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    - Episode 3
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  - Lesson 4
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    - Episode 7
  - Lesson 5
    - Episode 1
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    - Episode 6
  - Lesson 6
    - Episode 1
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    - Episode 4
    - Episode 5
  - ET and Haleemah
- Exponentials
  - Lesson 1
    - Episode 1
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    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
  - Lesson 2
  - Lesson 3
  - Lesson 4
    - Episode 1
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    - Episode 3
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    - Episode 6
  - Lesson 5
    - Episode 1
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    - Episode 3
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  - Lesson 6
    - Episode 1
    - Episode 2
    - Episode 3
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    - Episode 5
    - Episode 6
  - Lesson 7
    - Episode 1
    - Episode 2
    - Episode 3
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    - Episode 5
  - Josh and Arobindo
- Logarithms
  - Lesson 1
    - Episode 1
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    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
  - Lesson 2
    - Episode 1
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    - Episode 3
    - Episode 4
    - Episode 5
  - Lesson 3
  - Lesson 4
  - Lesson 5
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
  - Lesson 6
  - Josh and Arobindo
- Binomials
  - Lesson 1
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
    - Episode 8
  - Lesson 2
    - Episode 1
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    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
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    - Episode 8
  - Lesson 3
    - Episode 1
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    - Episode 5
    - Episode 6
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    - Episode 8
  - Lesson 4
    - Episode 1
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  - Lesson 5
    - Episode 1
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    - Episode 6
    - Episode 7
    - Episode 8
  - Lesson 6
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
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    - Episode 6
    - Episode 7
  - Emily and Mauricio
- Trigonometry
  - Lesson 1
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
  - Lesson 2
  - Lesson 3
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
  - Lesson 4
  - Lesson 5
  - Lesson 6
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
  - Lesson 7
  - Lesson 8
  - Claire and Mary
- Covariational Reasoning
  - Lesson 1
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
  - Lesson 2
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
  - Lesson 3
    - Episode 1
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    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
  - Lesson 4
  - Lesson 5
    - Episode 1
    - Episode 2
  - Lesson 6
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
Teachers
- Teacher Home
- Parabolas
  - Lesson 1
  - Lesson 2
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
  - Lesson 3
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
  - Lesson 4
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
  - Lesson 5
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
  - Lesson 6
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
  - Lesson 7
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
  - Lesson 8
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
  - Lesson 9
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
  - Lesson 10
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
- Proportions
  - Lesson 1
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
  - Lesson 2
  - Lesson 3
  - Lesson 4
  - Lesson 5
  - Lesson 6
  - Lesson 7
- Algebraic Expressions
  - Lesson 1
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
  - Lesson 2
  - Lesson 3
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
  - Lesson 4
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
  - Lesson 5
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
  - Lesson 6
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
- Exponentials
  - Lesson 1
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
  - Lesson 2
  - Lesson 3
  - Lesson 4
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
  - Lesson 5
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
  - Lesson 6
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
  - Lesson 7
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
- Logarithms
  - Lesson 1
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
  - Lesson 2
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
  - Lesson 3
  - Lesson 4
  - Lesson 5
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
  - Lesson 6
- Binomials
  - Lesson 1
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
    - Episode 8
  - Lesson 2
    - Episode 1
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    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
    - Episode 8
  - Lesson 3
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
    - Episode 8
  - Lesson 4
    - Episode 1
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    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
  - Lesson 5
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
    - Episode 8
  - Lesson 6
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
- Trigonometry
  - Lesson 1
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
  - Lesson 2
  - Lesson 3
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
  - Lesson 4
  - Lesson 5
  - Lesson 6
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
  - Lesson 7
  - Lesson 8
Researchers
Teacher Educators

Home
Students
- Student Home
- Parabolas
  - Lesson 1
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    - Episode 1
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  - Lesson 3
    - Episode 1
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  - Lesson 4
    - Episode 1
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    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
  - Lesson 5
    - Episode 1
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    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
  - Lesson 6
    - Episode 1
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    - Episode 3
    - Episode 4
    - Episode 5
  - Lesson 7
    - Episode 1
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    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
  - Lesson 8
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
  - Lesson 9
    - Episode 1
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    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
  - Lesson 10
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
  - Sasha and Keoni
- Proportions
  - Lesson 1
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
  - Lesson 2
  - Lesson 3
  - Lesson 4
  - Lesson 5
  - Lesson 6
  - Lesson 7
  - Kate and Christopher
- Algebraic Expressions
  - Lesson 1
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
  - Lesson 2
  - Lesson 3
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
  - Lesson 4
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
  - Lesson 5
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
  - Lesson 6
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
  - ET and Haleemah
- Exponentials
  - Lesson 1
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
  - Lesson 2
  - Lesson 3
  - Lesson 4
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
  - Lesson 5
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
  - Lesson 6
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
  - Lesson 7
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
  - Josh and Arobindo
- Logarithms
  - Lesson 1
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
  - Lesson 2
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
  - Lesson 3
  - Lesson 4
  - Lesson 5
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
  - Lesson 6
  - Josh and Arobindo
- Binomials
  - Lesson 1
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
    - Episode 8
  - Lesson 2
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
    - Episode 8
  - Lesson 3
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
    - Episode 8
  - Lesson 4
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
  - Lesson 5
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
    - Episode 8
  - Lesson 6
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
  - Emily and Mauricio
- Trigonometry
  - Lesson 1
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
  - Lesson 2
  - Lesson 3
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
  - Lesson 4
  - Lesson 5
  - Lesson 6
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
  - Lesson 7
  - Lesson 8
  - Claire and Mary
- Covariational Reasoning
  - Lesson 1
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
  - Lesson 2
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
  - Lesson 3
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
  - Lesson 4
  - Lesson 5
    - Episode 1
    - Episode 2
  - Lesson 6
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
Teachers
- Teacher Home
- Parabolas
  - Lesson 1
  - Lesson 2
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
  - Lesson 3
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
  - Lesson 4
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
  - Lesson 5
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
  - Lesson 6
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
  - Lesson 7
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
  - Lesson 8
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
  - Lesson 9
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
  - Lesson 10
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
- Proportions
  - Lesson 1
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
  - Lesson 2
  - Lesson 3
  - Lesson 4
  - Lesson 5
  - Lesson 6
  - Lesson 7
- Algebraic Expressions
  - Lesson 1
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
  - Lesson 2
  - Lesson 3
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
  - Lesson 4
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
  - Lesson 5
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
  - Lesson 6
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
- Exponentials
  - Lesson 1
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
  - Lesson 2
  - Lesson 3
  - Lesson 4
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
  - Lesson 5
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
  - Lesson 6
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
  - Lesson 7
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
- Logarithms
  - Lesson 1
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
  - Lesson 2
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
  - Lesson 3
  - Lesson 4
  - Lesson 5
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
  - Lesson 6
- Binomials
  - Lesson 1
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
    - Episode 8
  - Lesson 2
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
    - Episode 8
  - Lesson 3
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
    - Episode 8
  - Lesson 4
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
  - Lesson 5
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
    - Episode 8
  - Lesson 6
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
- Trigonometry
  - Lesson 1
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
  - Lesson 2
  - Lesson 3
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
    - Episode 7
  - Lesson 4
  - Lesson 5
  - Lesson 6
    - Episode 1
    - Episode 2
    - Episode 3
    - Episode 4
    - Episode 5
    - Episode 6
  - Lesson 7
  - Lesson 8
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This project is supported by the National Science Foundation through Awards DRL-1416789 and DRL 1907782. The views expressed here are not necessarily those of the NSF.

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