Title | Description | Thumbnail Image | Curriculum Topics |
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## Why Are Castles So Tall? |
## DescriptionIn this module students explore indirect measurement by seeing how simple angle measure, height measurements, and tangent ratios can be used to calculate distances. The context of castles provides a historically relevant military purpose for the tallness of castles. |
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## Closed Captioned Video: Percents: Applications of Percent -- Grade |
## Closed Captioned Video: Percents: Applications of Percent -- GradeVideo Tutorial: Applications of Percent -- Grade. In this video we investigate the concept of the grade of a road. This is an application of percents, where the slope of a road or a ski slope is written in percent form. We interpret this percent measurement as a slope measurement. |
Percents | |

## Closed Captioned Video: Percents: Calculating Commissions and Tips |
## Closed Captioned Video: Percents: Calculating Commissions and TipsVideo Tutorial: Percents: Calculating Commissions and Tips. In this video we look at using percent formulas to calculate sales commissions and tips. Various real-world scenarios are investigated for calculating these percent-based amounts. |
Percents | |

## Closed Captioned Video: Percents: Calculating Tax |
## Closed Captioned Video: Percents: Calculating TaxVideo Tutorial: Percents: Calculating Tax. In this video we look at using tax rates to calculate tax owed. The tax rates are written as percents and converted to decimals to calculate the tax. |
Percents | |

## Closed Captioned Video: Percents: Multiple Percents |
## Closed Captioned Video: Percents: Multiple PercentsVideo Tutorial: Percents: Multiple Percents. In this video, we investigate calculating the percent of a percent. Multiple calculations of a percent are investigated relative to a combined percent calculation. |
Percents | |

## Closed Captioned Video: Percents: Percent Decrease |
## Closed Captioned Video: Percents: Percent DecreaseVideo Tutorial: Percents: Percent Decrease. In this video, we look at the concept of percent decrease. The formula for calculating percent decrease is shown and used in the context of solving real-world problems. |
Percents | |

## Closed Captioned Video: Percents: Percent Increase |
## Closed Captioned Video: Percents: Percent IncreaseVideo Tutorial: Percents: Percent Increase. In this video, we look at the concept of percent increase. The formula for calculating percent increase is shown and used in the context of solving real-world problems. |
Percents | |

## Closed Captioned Video: Percents: Percents and Multiples of Numbers |
## Closed Captioned Video: Percents: Percents and Multiples of NumbersVideo Tutorial: Percents: Percents and Multiples of Numbers. In this video, we explore the difference between percent growth and the multiple of a number. Several real-world examples are used to explore these differences. |
Percents | |

## Closed Captioned Video: Percents: Probabilities and Percents |
## Closed Captioned Video: Percents: Probabilities and PercentsVideo Tutorial: Percents: Probabilities and Percents. In this video, percent calculations are used to explore probabilities of events. From a percent-based probability predictions are made for given outcomes. |
Percents | |

## Closed Captioned Video: Percents: Simple Interest |
## Closed Captioned Video: Percents: Simple InterestVideo Tutorial: Percents: Simple Interest. In this video, we look at simple interest in the context of using percent to make calculations. A formula for calculating simple interest is shown and used to solve several real-world problems. |
Percents | |

## Closed Captioned Video: Ratios: Application of Ratios: Roofs and Ramps |
## Closed Captioned Video: Ratios: Application of Ratios: Roofs and Ramps |
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 |