Subscribe
Sign in
Home
Chat
Schools and Schooling
Teaching Math Rightly
Recent Publications
Newsletters
Leaderboard
Subscriber Perks
About
Latest
Top
Discussions
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
11
4
2
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
14
3
3
Fibonacci's Forgotten Division Algorithm
And why it needs to be recovered
Jun 20
•
Dan Murphy
21
4
How It All Started
A note of gratitude to 1,000 readers
Jun 16
•
Dan Murphy
3
1
"Long" Division
There's more than one way to divide
Jun 13
•
Dan Murphy
29
3
The Bridge of Donkeys
Why the "obvious" parts of Euclid are the most important
Jun 6
•
Dan Murphy
16
14
2
May 2026
The Trick That Makes Kids Hate Math
Teaching Fraction Division So Kids Actually Get It
May 30
•
Dan Murphy
39
25
7
Don't Teach Fractions. Not Yet.
Don't Teach Fractions. Not Yet.
May 24
•
Dan Murphy
22
3
8
How to Study Euclid's Elements
The Hidden Structure of the Elements
May 16
13
4
6
Nobody Teaches Arithmetic Anymore
Imaginative Conservative
May 11
•
Dan Murphy
3
3
1
Euclid The Master
Approaching or Teaching Euclid for the First Time
May 9
•
Dan Murphy
6
2
New E-Book: Euclid in Color, Book I
A New Version of Euclid's Elements, Book I
May 5
•
Dan Murphy
5
3
2
This site requires JavaScript to run correctly. Please
turn on JavaScript
or unblock scripts