What Schools Forget

What Schools Forget

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The Declaration of Independence Is Almost a Euclidean Proof
Jefferson borrowed Euclid's structure, axioms and all, to argue for independence.
Jul 4 • Dan Murphy

June 2026

Prime Factors: The DNA of Numbers
Prime factorization isn't just a chapter to get through. It's a window into the nature of number.
Jun 28 • Dan Murphy
Fibonacci's Forgotten Division Algorithm
And why it needs to be recovered
Jun 20 • Dan Murphy
How It All Started
A note of gratitude to 1,000 readers
Jun 16 • Dan Murphy
"Long" Division
There's more than one way to divide
Jun 13 • Dan Murphy
The Bridge of Donkeys
Why the "obvious" parts of Euclid are the most important
Jun 6 • Dan Murphy

May 2026

The Trick That Makes Kids Hate Math
Teaching Fraction Division So Kids Actually Get It
May 30 • Dan Murphy
Don't Teach Fractions. Not Yet.
Don't Teach Fractions. Not Yet.
May 24 • Dan Murphy
How to Study Euclid's Elements
The Hidden Structure of the Elements
May 16
Nobody Teaches Arithmetic Anymore
Imaginative Conservative
May 11 • Dan Murphy
Euclid The Master
Approaching or Teaching Euclid for the First Time
May 9 • Dan Murphy
New E-Book: Euclid in Color, Book I
A New Version of Euclid's Elements, Book I
May 5 • Dan Murphy
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