Title | Description | Thumbnail Image | Curriculum Topics |
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## Algebra Application: Cicada Cycles |
In this Algebra Application, students study the life cycles of 13- and 17-year cicadas, as well as the populations of bird predators. Students develop a mathematical model using spreadsheets and investigate why the prime number life cycles help the cicadas. The math topics covered include: |
Applications of Ratios, Proportions, and Percents, Percents, Numerical Expressions | |

## Closed Captioned Video: Ratios: Unit Rates |
## DescriptionVideo Tutorial: Ratios: Unit Rates. In this video we look at unit rates. A Video Transcript is available for this tutorial. Note: The download is Media4Math's guide to closed captioned videos. |
Ratios and Rates | |

## Definition--Ratios, Proportions, and Percents Concepts--Calculating Tax |
## Definition--Ratios, Proportions, and Percents Concepts--Calculating TaxThis is part of a collection of definitions related to ratios, proportions, and percents. This includes general definitions for ratios, proportions, percents, as well as terms related to similarity, proportionality, and equivalence of ratios. |
Applications of Ratios, Proportions, and Percents | |

## Definition--Ratios, Proportions, and Percents Concepts--Calculating Tips |
## Definition--Ratios, Proportions, and Percents Concepts--Calculating TipsThis is part of a collection of definitions related to ratios, proportions, and percents. This includes general definitions for ratios, proportions, percents, as well as terms related to similarity, proportionality, and equivalence of ratios. |
Applications of Ratios, Proportions, and Percents | |

## Definition--Ratios, Proportions, and Percents Concepts--Converting Units |
## Definition--Ratios, Proportions, and Percents Concepts--Converting UnitsThis is part of a collection of definitions related to ratios, proportions, and percents. This includes general definitions for ratios, proportions, percents, as well as terms related to similarity, proportionality, and equivalence of ratios. |
Ratios and Rates | |

## Definition--Ratios, Proportions, and Percents Concepts--Dimensional Analysis |
## Definition--Ratios, Proportions, and Percents Concepts--Dimensional Analysis |
Applications of Ratios, Proportions, and Percents | |

## Definition--Ratios, Proportions, and Percents Concepts--Equivalent Ratios |
## Definition--Ratios, Proportions, and Percents Concepts--Equivalent Ratios |
Ratios and Rates | |

## Definition--Ratios, Proportions, and Percents Concepts--Part-to-Part Ratios |
## Definition--Ratios, Proportions, and Percents Concepts--Part-to-Part Ratios |
Ratios and Rates | |

## Definition--Ratios, Proportions, and Percents Concepts--Part-to-Whole Ratios |
## Definition--Ratios, Proportions, and Percents Concepts--Part-to-Whole Ratios |
Ratios and Rates | |

## Definition--Ratios, Proportions, and Percents Concepts--Percent |
## Definition--Ratios, Proportions, and Percents Concepts--Percent |
Percents | |

## Definition--Ratios, Proportions, and Percents Concepts--Percent Decrease |
## Definition--Ratios, Proportions, and Percents Concepts--Percent Decrease |
Percents | |

## Definition--Ratios, Proportions, and Percents Concepts--Percent Increase |
## Definition--Ratios, Proportions, and Percents Concepts--Percent Increase |
Percents | |

## Definition--Ratios, Proportions, and Percents Concepts--Percent of a Number |
## Definition--Ratios, Proportions, and Percents Concepts--Percent of a Number |
Percents | |

## Definition--Ratios, Proportions, and Percents Concepts--Percent of an Unknown |
## Definition--Ratios, Proportions, and Percents Concepts--Percent of an Unknown |
Percents | |

## Definition--Ratios, Proportions, and Percents Concepts--Percents as Decimals |
## Definition--Ratios, Proportions, and Percents Concepts--Percents as Decimals |
Percents | |

## Definition--Ratios, Proportions, and Percents Concepts--Proportion |
## Definition--Ratios, Proportions, and Percents Concepts--Proportion |
Proportions | |

## Definition--Ratios, Proportions, and Percents Concepts--Proportional |
## Definition--Ratios, Proportions, and Percents Concepts--Proportional |
Proportions | |

## Definition--Ratios, Proportions, and Percents Concepts--Rate |
## Definition--Ratios, Proportions, and Percents Concepts--Rate |
Ratios and Rates | |

## Definition--Ratios, Proportions, and Percents Concepts--Ratio |
## Definition--Ratios, Proportions, and Percents Concepts--Ratio |
Ratios and Rates | |

## Definition--Ratios, Proportions, and Percents Concepts--Ratios and Fractions |
## Definition--Ratios, Proportions, and Percents Concepts--Ratios and Fractions |
Ratios and Rates | |

## Definition--Ratios, Proportions, and Percents Concepts--Ratios and Slope |
## Definition--Ratios, Proportions, and Percents Concepts--Ratios and Slope |
Ratios and Rates | |

## Definition--Ratios, Proportions, and Percents Concepts--Ratios in Simplest Form |
## Definition--Ratios, Proportions, and Percents Concepts--Ratios in Simplest Form |
Applications of Ratios, Proportions, and Percents | |

## Definition--Ratios, Proportions, and Percents Concepts--Ratios with Decimals |
## Definition--Ratios, Proportions, and Percents Concepts--Ratios with Decimals |
Ratios and Rates | |

## Definition--Ratios, Proportions, and Percents Concepts--Ratios with Fractions |
## Definition--Ratios, Proportions, and Percents Concepts--Ratios with Fractions |
Ratios and Rates | |

## Definition--Ratios, Proportions, and Percents Concepts--Ratios with Percents |
## Definition--Ratios, Proportions, and Percents Concepts--Ratios with Percents |
Ratios and Rates |