Powers Review

Directions

Start by clicking the flashing yellow button to see an animation illustrating repeated multiplication. Repeated multiplication is the key concept to remember when you study powers and power laws.

Click the "Components" button.

  • Read the information in the blue box, then move the sliders as directed. This should help you remember which number in a power is the base and which is the exponent.
  • Click the flashing yellow button once to see how to read powers.
  • Click the flashing yellow button once more to reach the "Coefficients of Powers". Read the information in the blue box, then move the sliders as directed. This section may help you remember which number in a power is the coefficient.

Click the "Forms" button.

  • Read the information in the blue box, then move the sliders as directed. Look to see how the the exponential, expanded (repeated multiplication) and standard forms relate to one another. The names make sense
    • exponential form has an exponent
    • expanded form shows repeated multiplication
    • standard name is the "most common" way to write numbers.

Click the "Power Practice" button.
Read the directions. Once a "New Problem" is generated, selecting the "Check/Explain" button provides feedback and sample keystokes to calculate powers on a scientific calculator. If you are learning the procedure, enter the keystrokes given into the calculator provided. After a few examples you will like understand how to calculator powers on a scientific calculator.

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Comments to:  Jim Reed
Started September, 1998. Copyright 1999, 2000, 2001, 2002

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