Posts by JDM Educational Staff

Standard deviation is used in statistics to tell us how “spread out” the data points are.  Having one or more data points far away from the mean indicates a large spread – but there are...

Functions and equations are both used often in mathematics.  However, there is still the question of how these two concepts are related – and whether they are the same thing. So, what is...

We learn about trig functions such as sine, cosine, and tangent in high school math courses.  However, this often leads students to wonder how these ideas are applied in technology and other...

Triangles come up often in mathematics, and for good reason – they are useful for a variety of purposes.  We can use their angles to categorize triangles and make statements about what they...

Complex numbers come up in algebra, calculus, and other areas of mathematics.  This set of numbers often raises some questions about its nature in relation to other sets. Complex numbers...

Cubic functions are not seen as commonly as quadratics, but they are still important in mathematics.  We can say a lot about the roots of cubic functions and what they look like (real or...