Truman Gray · your physics coach

Don't memorize physics.
See it.

We start from a few true principles, and everything else follows. Practice from the right point of view, again and again, until physics becomes visible.

Try a free Formula Grid How it works
Truman Gray
Hi, I'm Truman Gray. My students just call me Mr. Gray.

How we practice

Physics is not a pile of formulas. It is a few ideas that explain almost everything, once you learn to look from the right place.

01

Principles first

Every topic starts from a small set of true principles. Formulas are what follow from them, not what you memorize.

02

Practice until it's visible

Short, focused drills train the same moves until you stop calculating blindly and start seeing what will happen.

03

Know which move to make

For any problem, the hard part is choosing where to begin. We practice that choice, step by step.

Try it free: Formula Grids

One formula, one grid, a timer. Fill in the cells, check your answers on screen, or print it out. Aim to beat your own time.

Coming soon

The site is new. Here is what is on the way.

Videos

Short puzzles that look simple and aren't, and longer lessons that build each topic from its principles.

Strategy Cards

A deck of the moves physicists actually use, and practice sets that show how they combine in real exam problems.