Students research the four geologic eras of Earth's history. In this extension on a fossils lesson, students research the different eras of Earth's history. Students use AppleWorks to create a bar graph containing information of the four...

Seventh graders use accessible technology to explore active research projects currently taking place, choose a current research project to study and create a presentation using the information that they have gathered.

Learners work together to create a model of the Earth. They label and identify each layer and describing its properties. They discover how engineers use models to test different concepts.

Students investigate the biodiversity found along the coast of South Africa. They conduct research using a variety of resources. They use the information in order to write lab reports with the data. The instructional activity can be...

In this ESL conversation about school worksheet, students complete a dictation activity and read and discuss several articles about various aspects of school. A reference web site is included.

Explains how simple polygons translate into matrices and how to use 2x2 matrices to represent transformations in a plane. Includes video demonstrating an example where a vector must be rotated 90 degrees using matrices. [4:18]

Explains the properties of exponents. Includes a short video. [1:56]

Get information about solving systems of equations in three variables by viewing examples and a video lesson. [6:35]

An exponential function is a nonlinear function that has the form of y=a*b^x, where a != 0, b > 0. An exponential function with a > 0 and b > 1, like the one above, represents an exponential growth and the graph of an...

A system of linear inequalities in two variables consists of at least two linear inequalities in the same variables. The solution of a linear inequality is the ordered pair that is a solution to all inequalities in the system and the...

The absolute value of a number a is written as |a| and represents the distance between a and 0 on a number line. An absolute value equation is an equation that contains an absolute value expression. The equation |x|= a has two solutions...

This resource is about factorizing trinomials of the form x^2+bx+c by making them into a product of two binomials x^2+bx+c=(x+m)(x+n) where m+n=b and m*n=c

You can factor polynomials of the form ax^2 + bx + c. If a is positive, then ax^2+bx+c=(x+m)(ax+n) where c = m*n, a*c = p*q and b = p+q = a*m + n

A nonlinear function that can be written on the standard form ax^2 + bx + c,where a is not = 0, is called a quadratic function. All quadratic functions hava a U-shaped graph called a parabola.

A quadratic equation is an equation that can be written on the standard form ax^2 + bx + c = 0, where a is not = 0. One way of solving a quadratic equation is by factoring. Another way of solving a quadratic equation is to solve it...

Are you about to take the SAT test? Here are 24 sample problems similar to the ones you will find in your own SAT test. If you have problems solving any of the questions then watch the video lesson just beneath the problem to get an...

Are you about to take the SAT test? Here are 25 sample problems similar to the ones you will find in your own SAT test. If you have problems solving any of the questions then watch the video lesson just beneath the problem to get an...

Are you about to take the SAT test? Here are 10 sample problems similar to the ones you will find in your own SAT test. If you have problems solving any of the questions then watch the video lesson just beneath the problem to get an...

Are you about to take the ACT test? Here are 20 sample problems similar to the ones you will find in your own ACT test. If you have problems solving any of the questions then watch the video lesson just beneath the problem to get an...

Are you about to take the ACT test? Here are 20 sample problems similar to the ones you will find in your own ACT test. If you have problems solving any of the questions then watch the video lesson just beneath the problem to get an...

Polynomial functions are investigated through examples and a video lesson. [0:57]

Provides examples and a video lesson that illustrate the remainder and factor theorems. [1:34]

Provides examples and a video lesson that illustrate roots and zeros in polynomial functions. [4:01]

Provides examples and a video lesson that illustrates how to simplify a rational expression. [1:17]