Euclid, Book I is open

A tutor who makes you do the proof.

Begin with Proposition I.1. Build the figure yourself while the tutor questions your reasoning and checks the construction.

Euclid · Book I

Proposition I.1

Step 2 of 4
ABC
G

The Geometer. Why must these three sides be equal?

25

random checks per construction

0

multiple-choice answers

5

explicit assumptions

A quieter way to learn

The work stays in focus.

01

Read closely

Primary texts stay at the center.

02

Build visibly

Work through each idea, one move at a time.

03

Know what’s next

Progress and deadlines remain clear.

Ready to begin?