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  • Feb 28, 11

    What started out as Sal making a few algebra videos for his cousins has grown to over 2,100 videos and 100 self-paced exercises and assessments covering everything from arithmetic to physics, finance, and history.

  • Feb 28, 11

    Alpha: Computational Knowledge Engine

  • Feb 28, 11

    "Practice and learn Prealgebra and Algebra topics!
    Walk through step-by-step
    solutions to see where you made your mistake.
    See your stats for every
    problem type (saved across app runs).
    Work out problems without needing to
    take notes.
    10 math lessons
    13 practice topics
    - Integer Multiplication
    / Division w/Negatives
    - Distributed Linear Equations
    - Naming Polynomials
    (by Degree)
    - Naming Polynomials (by Number of Terms)
    - Naming Polynomials
    (by Degree and Terms)
    - One Step Linear Equations
    - Multiplying
    Polynomials
    - Factorable Quadratic Equations (in Factored Form)
    -
    Factorable Quadratic Equations (in Standard Form)
    - Convert from Decimal to
    Scientific Notation
    - Convert from Scientific Notation to Decimal
    - Simply
    Single Degree Polynomials
    - Two Step Linear Equations"

  • Feb 28, 11

    TI-83 in your phone!
    Get a TI-83 emulator for your phone! The TI-83 graphing calculator is great as a standard calculator, but also great for statistics and trigonometry. Graph and compare functions, and perform data plotting and analysis. Write programs in TI-BASIC. Andy-83 is a TI-83 emulator based on source code from Marat Fayzullin (http://fms.komkon.org/ATI85/).

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