-
MathFour is Back!
For a while, a long while, I let this math blog just sit. I didn’t want to delete it. I spent too much time on it and I knew it was full of great stuff that was still being used. But I wasn’t in love with writing on it. In my lethargy, the hackers and…
-
Seeing Math at Church
Can you see math at your church? I bet you can!
-
Fahrenheit to Celsius – Graphically!
The conversion from Celsius to Fahrenheit and back again can be strange. One way to understand it is on a graph. And you can use this to teach some linear algebra too!
-
Area of a Circle vs. Area of a Triangle
This is a neat way to look at how a circle can relate to a triangle — it’s less of a proof and more of an inspiration to think.
-
Does Santa Exist — Mathematically?
Can you prove Santa exists? If not Mathematically, then at least you can catch him in the act with a fun photo service!
-
Personalized Number Puzzle Gift
Remember those email number puzzles that you get every now and then? Now’s your chance to make your own — easily!
-
Area of a Right Triangle
Calculating the area of a right triangle includes remembering the formula, and doing the arithmetic correctly. Here’s a short video demonstrating it.
-
Christmas on a Budget of $0
This year, money’s tight. But we’ve had tight Christmases before. Here’s how I’m doing it on a $0 budget!
-
Great Gift Wrap Up — Math Gifts
Looking for some great gifts? Here’s a big collection of educational math gifts that are fun!
-
Salvation Army Donation Math
Do you donate to charities? Here’s how you can integrate a math lesson into it!












