# ## On this page you'll find a sampling of the many resources on Media4Math that focus on the topic of Expressions. Media4Math is a digital library of over 15,000 resources on all key topics in K-12 math.

Number of Resources: 1512
Thumbnail Image Description 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:

## VIDEO: Algebra Applications: Variables and Equations In this episode of Algebra Applications, two real-world explorations are developed: Biology. Analyzing statistics from honey bee production allows for a mathematical analysis of the so-called Colony Collapse Disorder. Geology. Why do rivers meander instead of traveling in a straight line? In this segment the geological forces that account for a river’s motion are explained.

## VIDEO: Algebra Applications: Variables and Equations, Segment 1: Introduction. An overview of the key topics to be covered in the video.

This video includes a Video Transcript: https://www.media4math.com/library/video-transcript-algebra-application…

## VIDEO: Algebra Applications: Variables and Equations, Segment 2: Honey Production. Honey bees not only produce a tasty treat, they also help pollinate flowering plants that provide much of the food throughout the world. So, when in 2006 bee colonies started dying out, scientists recognized a serious problem. Analyzing statistics from honey bee production allows for a mathematical analysis of the so-called Colony Collapse Disorder.

## VIDEO: Algebra Applications: Variables and Equations, Segment 3: River Ratios. Why do rivers meander instead of traveling in a straight line? In going from point A to point B, why should a river take the circuitous route it does instead of a direct path? Furthermore, what information can the ratio of the river’s length to its straight-line distance tell us? In this segment the geological forces that account for a river’s motion are explained.

## VIDEO: Algebra Nspirations: Variables and Equations Ever since the mathematics of the Babylonians, equations have played a central role in the development of algebra. Written and hosted by internationally acclaimed mathematics educator Dr. Monica Neagoy, this video traces the history and evolution of equations. It explores the two principal equations encountered in an introductory algebra course – linear and quadratic – in an engaging way.

## VIDEO: Algebra Nspirations: Variables and Equations, Segment 1 In this Investigation we get a historical overview of equations.

This video is Segment 1 of a 2 segment series related to Variables and Equations. To access Variables and Equations, Segment 2, click the following link:

## VIDEO: Algebra Nspirations: Variables and Equations, Segment 2 In this Math Lab a hands-on activity has students comparing the diameter of a circle and its circumference.

This video is Segment 2 of a 2 segment series related to Variables and Equations. To access Variables and Equations, Segment 1, click the following link:

## VIDEO: Algebra Nspirations: Variables and Equations, Segment 3 In this Investigation we solve linear and quadratic equations.

This video is Segment 3 of a 4 segment series related to Variables and Equations. Segments 3 and 4 are grouped together. To access Variables and Equations, Segment 4, click the following link:

## VIDEO: Algebra Nspirations: Variables and Equations, Segment 4 In this Math Lab we look at an area model for expanding the product of two binomials.

This video is Segment 4 of a 4 segment series related to Variables and Equations. Segments 3 and 4 are grouped together. To access Variables and Equations, Segment 3, click the following link:

## VIDEO: Brief Review: Adding and Subtracting Rational Numbers In this Brief Review, the addition and subtraction of rational numbers is explored. Note: The download is an MP4 file.

## VIDEO: Brief Review: Adding Integers ## VIDEO: Brief Review: Addition and Subtraction Expressions In this Brief Review, addition and subtraction of numerical expressions are explored. Note: The download is an MP4 file.

## VIDEO: Brief Review: Applications of Integers In this Brief Review, real-world applications of integers are explored. Note: The download is an MP4 file.

## VIDEO: Brief Review: Applications of Order of Operations In this Brief Review, applications of order of operations are explored. Note: The download is an MP4 file.

## VIDEO: Brief Review: Applications of Rational Numbers In this Brief Review, applications of rational numbers are explored. Note: The download is an MP4 file.

## VIDEO: Brief Review: Comparing Integers In this Brief Review, integers are compared using a number line. Note: The download is an MP4 file.

## VIDEO: Brief Review: Distance Measures on a Number Line In this Brief Review, integers are used to determine distances on a number line. Note: The download is an MP4 file.

## VIDEO: Brief Review: Dividing Rational Numbers In this Brief Review, division of rational numbers is explored. Note: The download is an MP4 file.

## VIDEO: Brief Review: Division Expressions In this Brief Review, division of numerical expressions is explored. Note: The download is an MP4 file.

## VIDEO: Brief Review: Examples of Adding and Subtracting Integers In this Brief Review, 13 worked-out examples show how to add and subtract integers using Algebra Tiles. Note: The download is an MP4 file.

## VIDEO: Brief Review: Examples of Order of Operations In this Brief Review, 11 worked-out examples show how to use of order of operations. Note: The download is an MP4 file.

## VIDEO: Brief Review: Graphing Integers on a Number Line In this Brief Review, integers are graphed on a number line. Note: The download is an MP4 file.

## VIDEO: Brief Review: Integers In this Brief Review, integers are defined. Note: The download is an MP4 file.

## VIDEO: Brief Review: Multiplication Expressions In this Brief Review, multiplication of numerical expressions is explored. Note: The download is an MP4 file.