A superintendent returns to the classroom, rediscovering the joy of teaching math and gaining deeper insight into students and educators.

In this math tutorial, I will show you how to multiply complex numbers. Complex numbers come in the form of a + bi.

👉 Learn how to apply the rules of exponents to simplify an expression. We will focus on applying the product rule, quotient ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Alexandra Twin has 15+ years of experience as an editor and writer, covering financial news for public and private companies. Robert Kelly is managing director of XTS Energy LLC, and has more than ...

The apostrophe can be used to show who things belong to. If an item belongs to something, the apostrophe shows us who, by sitting at the end of the noun. If that noun doesn't end in s, the apostrophe ...

Homophones are words that sound the same but have different meanings. They also have different spellings. These are some homophones that often confuse people. Narrator: Looks like you're in a heap of ...

Governor Larry Rhoden has released an interactive map that shows how much South Dakotans could save if his plan to cut property taxes, Senate Bill 96, is passed by the state legislature. Rhoden’s plan ...

A collection of runnable PBT examples in Python and C++. Each file covers a single concept so you can jump straight to the pattern you care about. The sneaky bugs files are the fun part. They show why ...

JavaScript is a great language. It has a simple syntax, large ecosystem and, what is most important, a great community. At the same time, we all know that JavaScript is quite a funny language with ...