How Do You Profit From Trading Stocks?

How do you measure a distance where the measurement tool will not reach? Pupils use the concept of similar triangles to perform indirect measurements. The lesson asks teachers to demonstrate the method and lead the class through a set of...

How do you determine the correlation in a set of data? Plot the data, find the line of fit, then use that line to determine if the correlation is positive, negative, or no correlation. This tutorial demonstrates that when a line of fit...

So you have a variable on both sides of the equation. How do you solve this kind of equation? Just get like terms together on each side of the equation and then isolate that variable.

A reflection is just what you think it is, a mirror image. So how do you reflect a figure on a graph? Just flip it over. The teacher illustrates how to select a line of reflection (the x-axis) and make the calculations to flip the figure.

Maria is 12 years old. How do you know that? Follow the teacher as she shows you how to set up and solve this word problem. Don't forget to check your answer.

How do you find the area of a sector of a circle? Use the formula of course. Then all you have to do is plug in the given values and do the math. Make sure you are following the rules of order of operation. The instructor will walk you...

Two equations. Wait! They don't look like the same kind of equations. How do you solve a system of equations when one equation is linear and the other is a quadratic? Watch this video as the instructor illustrates how to use the...

You have an equation with an unknown variable and fractions. How do you solve this kind of equation? You can do it using the addition property of equality to first isolate the variable. Then, combine the fractions and since they have a...

Two angles with given values are adjacent. Together they are 172.5 degrees. How do you find the degree of one of the angles? You will have to write an algebraic equation with the given information to solve for the value of the variable....

Consider one of the most fundamental questions of philosophy posed by Rene Descartes in his Meditations on First Philosophy: How do we really know we exist? This animated video is accompanied by multiple-choice assessment questions,...