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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…
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Texas Instruments Little Professor
Do you remember the TI Little Professor? Take a look at a working one!
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Seeing Math at Church
Can you see math at your church? I bet you can!
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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!
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10 Ways Getting Married is Like Doing Math
Getting married and doing math are both challenging and fun. Among many other things!
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Pi Day Videos — Song & Limerick
As a special Pi Day treat, I share my way to remember pi to 5 decimal places: a Pi Limerick! (Oh, and a video by Vi Hart — who has a beautiful voice!)
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The Geometry behind Folding Fitted Sheets
I’m obsessed with folding fitted sheets. Maybe that’s because there’s so much geometry in it. After all I fitted sheet is a concave irregular dodecagon!
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5 Room House Puzzle
I worked on the 5 Room House Problem for more than 20 years. And yet I still assign it to students. It’s good for thinking and learning, and stating the problem.
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Variations on the Number 4
Here are some variations on the number 4. Some are nice, some are a little freaky.
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Making Sausage with Math
There’s math everywhere. Including processing a deer and making sausage!
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.