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How to Subtract Using Reverse Addition
Did you learn to “borrow” when you subtract? How about reverse adding? Some schools have gone to this new method and gotten rid of the borrowing concept. Here’s how it works.
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How to Find the nth Term in a Sequence
If you’re asked to find the nth number in a pattern, do you know what nth means? Here’s where to start and what to do with all those n’s!
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Using Conjugates in Imaginary and Complex Number Work
We use conjugates in the manipulation of imaginary and complex numbers. So it’s important to understand what a conjugate is and how it works. I explain both here.
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A Quick Way to Learn Completing the Square
Completing the square isn’t as hard as everyone thinks. And there’s no reason to memorize a bunch of strange pixie dust magic math rules. Here’s the way to see it for what it is.
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How to Calculate the Weight of Cannon
I was at the Houston Museum of Natural Science last Saturday at the Real Pirates exhibit. Here’s the fun math thing I learned about cannon.
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How to Solve an Equation with Four Terms
Do you ever wonder why teachers start a problem the way they do? Here’s a good way to remain consistent. This is how I’ll do it on this site.
About MathFour.com
I’m Bon Crowder and the photos above are both of me – in 1989 and today. I’m a Generation X mom of Generation Z kids. I began peer tutoring in high school in 1984.
MathFour.com is the “today” version of me helping peers be comfortable in math. If you’re a Gen-X parent, you’re in the right place!
Wanna connect? Give me a call at 713-557-8048.