Title | Description | Thumbnail Image | Curriculum Topics |
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## Why Do Elephants Have Wrinkled Skin? |
## DescriptionHave you noticed how wrinkled an elephant's skin is? What purpose does it serve and what does math have to do with explaining this phenomenon? Well, the explanation for an elephant's wrinkled skin is almost entirely a math story. |
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## Slope and Grade |
## DescriptionIn this lesson students learn how to use the slope formula to calculate steepness. In particular, students learn how to calculate steepness in the context of cycling. Cyclists use a measure called grade to calculate the steepness of a hill or mountain. Students apply their knowledge of slope to the concept of grade. |
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## VIDEO: Algebra Applications: Rational Functions |
## VIDEO: Algebra Applications: Rational FunctionsIn this episode of Algebra Applications, students explore various scenarios that can be explained through the use of rational functions. Such disparate phenomena as submarines, photography, and the appearance of certain organisms can be explained through rational function models. |
Rational Expressions, Rational Functions and Equations | |

## Closed Captioned Video: Algebra Applications: Rational Functions |
## Closed Captioned Video: Algebra Applications: Rational FunctionsIn this episode of Algebra Applications, students explore various scenarios that can be explained through the use of rational functions. Such disparate phenomena as submarines, photography, and the appearance of certain organisms can be explained through rational function models. |
Rational Expressions, Rational Functions and Equations | |

## Closed Captioned Video: Algebra Applications: Rational Functions, 1 |
## Closed Captioned Video: Algebra Applications: Rational Functions, Segment 1: SubmarinesIn spite of their massive size, submarines are precision instruments. A submarine must withstand large amounts of water pressure; otherwise, a serious breach can occur. Rational functions are used to study the relationship between water pressure and volume. |
Rational Expressions, Rational Functions and Equations | |

## Closed Captioned Video: Algebra Applications: Rational Functions, 2 |
## Closed Captioned Video: Algebra Applications: Rational Functions, Segment 2: BiologyAll living things take up a certain amount of space, and therefore have volume. They also have a certain amount of surface area. The ratio of surface area to volume, which is a rational function, reveals important information about the organism. |
Rational Expressions, Rational Functions and Equations | |

## Closed Captioned Video: Algebra Applications: Rational Functions, 3 |
## Closed Captioned Video: Algebra Applications: Rational Functions, Segment 3: Hubble TelescopeThe Hubble Telescope has transformed how we view the universe. We learn about the lens formula and how it is used in the construction of telescopes. |
Rational Expressions, Rational Functions and Equations | |

## Closed Captioned Video: Algebra Nspirations: Rational Functions |
## Closed Captioned Video: Algebra Nspirations: Rational Functions and ExpressionsAfter briefly reviewing the concept of inverse variation, this video explores Boyle’s law, a real world example of an inversely proportional relationship between pressure and volume of a gas. Written and hosted by internationally acclaimed math educator Dr. |
Rational Expressions, Rational Functions and Equations | |

## Closed Captioned Video: Algebra Nspirations: Rational Functions, 1 |
## Closed Captioned Video: Algebra Nspirations: Rational Functions and Expressions, Segment 1In this Investigation we look at an application of rational functions: Boyle's Law. This video is Segment 1 of a 4 segment series related to Algebra Nspirations: Rational Functions and Expressions. Segments 1 and 2 are grouped together. |
Rational Expressions, Rational Functions and Equations | |

## Closed Captioned Video: Algebra Nspirations: Rational Functions, 3 |
## Closed Captioned Video: Algebra Nspirations: Rational Functions and Expressions, Segment 3In this Investigation we look at graphs of rational functions. This video is Segment 3 of a 4 segment series related to Algebra Nspirations: Rational Functions and Expressions. Segments 3 and 4 are grouped together. |
Rational Expressions, Rational Functions and Equations | |

## Closed Captioned Video: Exp Rational Functions |
## Closed Captioned Video: Exp Rational FunctionsIn this TI Nspire tutorial, the Graph window is used to create a slider-based graph of a rational function. This video supports the TI-Nspire Clickpad and Touchpad. This Mini-Tutorial Video includes a worksheet. . |
Rational Functions and Equations | |

## Closed Captioned Video: Rational Numbers: Rational Numbers on the Cartesian Coordinate System |
## Closed Captioned Video: Rational Numbers: Rational Numbers on the Cartesian Coordinate SystemThis is part of a collection of video tutorials on the topic of Rational Numbers. This includes defining rational numbers, rational number operations, comparing and ordering rational numbers, and applications of rational numbers. |
Rational Expressions | |

## Closed Captioned Video: Rational Numbers: Subtracting Rational Numbers |
## Closed Captioned Video: Rational Numbers: Subtracting Rational NumbersThis is part of a collection of video tutorials on the topic of Rational Numbers. This includes defining rational numbers, rational number operations, comparing and ordering rational numbers, and applications of rational numbers. |
Rational Expressions | |

## Closed Captioned Video: Rational Numbers: Variable Expressions with Rational Numbers |
## Closed Captioned Video: Rational Numbers: Variable Expressions with Rational NumbersThis is part of a collection of video tutorials on the topic of Rational Numbers. This includes defining rational numbers, rational number operations, comparing and ordering rational numbers, and applications of rational numbers. |
Rational Expressions | |

## Closed Captioned Video: Rational Numbers: What Are Rational Numbers? |
## Closed Captioned Video: Rational Numbers: What Are Rational Numbers? |
Rational Expressions | |

## INSTRUCTIONAL RESOURCE: Tutorial: Adding and Subtracting Rational Numbers |
## INSTRUCTIONAL RESOURCE: Tutorial: Adding and Subtracting Rational NumbersIn this Slide Show, learn how to add and subtract rational numbers. Includes links to several Media4Math videos and a math game. |
Rational Expressions, Rational Functions and Equations | |

## MATH EXAMPLES--Teacher's Guide: Graphs of Rational Functions |
## MATH EXAMPLES--Teacher's Guide: Graphs of Rational FunctionsThis Teacher's Guide provides an overview of the 28 worked-out examples that show how to graph Rational Functions. |
Rational Functions and Equations | |

## Video Transcript: Algebra Applications: Rational Functions |
## Video Transcript: Algebra Applications: Rational FunctionsThis is the transcript for the video of same title. Video contents: In this episode of Algebra Applications, students explore various scenarios that can be explained through the use of rational functions. |
Rational Expressions, Rational Functions and Equations | |

## Video Transcript: Algebra Applications: Rational Functions, Segment 1: Submarines |
## Video Transcript: Algebra Applications: Rational Functions, Segment 1: SubmarinesThis is the transcript for the video of same title. Video contents: In spite of their massive size, submarines are precision instruments. A submarine must withstand large amounts of water pressure; otherwise, a serious breach can occur. |
Rational Expressions, Rational Functions and Equations | |

## Video Transcript: Algebra Applications: Rational Functions, Segment 2: Biology |
## Video Transcript: Algebra Applications: Rational Functions, Segment 2: BiologyThis is the transcript for the video of same title. Video contents: All living things take up a certain amount of space, and therefore have volume. They also have a certain amount of surface area. |
Rational Expressions, Rational Functions and Equations | |

## Video Transcript: Algebra Applications: Rational Functions, Segment 3: Hubble Telescope |
## Video Transcript: Algebra Applications: Rational Functions, Segment 3: Hubble TelescopeThis is the transcript for the video of same title. Video contents: The Hubble Telescope has transformed how we view the universe. We learn about the lens formula and how it is used in the construction of telescopes. |
Rational Expressions, Rational Functions and Equations | |

## Video Transcript: Algebra Nspirations: Rational Functions and Expressions |
## Video Transcript: Algebra Nspirations: Rational Functions and ExpressionsThis is the transcript for the video of same title. Video contents: After briefly reviewing the concept of inverse variation, this video explores Boyle??s law, a real world example of an inversely proportional relationship between pressure and volume of a gas. |
Rational Expressions, Rational Functions and Equations | |

## Video Transcript: Algebra Nspirations: Rational Functions and Expressions, 1 |
## Video Transcript: Algebra Nspirations: Rational Functions and Expressions, Part 1This is the transcript for the video of same title. Video contents: In this Investigation we look at an application of rational functions: Boyle's Law. |
Rational Expressions, Rational Functions and Equations | |

## Video Transcript: Algebra Nspirations: Rational Functions and Expressions, 2 |
## Video Transcript: Algebra Nspirations: Rational Functions and Expressions, Part 2This is the transcript for the video of same title. Video contents: In this Investigation we look at graphs of rational functions. |
Rational Expressions, Rational Functions and Equations | |

## Video Transcript: Rational Numbers: Rational Numbers On a Number Line |
## Video Transcript: Rational Numbers: Rational Numbers On a Number Line |
Rational Expressions |