How it works

How a lesson works

Four steps, the same in every lesson. Guessing first makes the explanation stick.

Predict
Before anything runs, choose what you think will happen.
There is no penalty for being wrong.
Run
The lab calculates the result on prepared sample data — instantly, in your browser.
Move the sliders to explore further.
Explain
Read why the numbers changed, in plain words.
Explanations follow fixed rules you can read.
Reflect
Write one sentence in your own words and save the lesson.
Your notes stay private to your account.

Words you will meet

Short, honest definitions.

Signal: A calculation that flags a condition, such as “price is above its average”.
Rule: What to do when a signal appears: buy, sell or wait.
Moving average: The average price over the last N days, updated daily.
Drawdown: How far an account fell from its highest point.
Slippage: The difference between the price you expected and the price you got.
Basis point (bp): One hundredth of a percent: 10 bps = 0.10%.
Paper trading: Practising with simulated trades instead of real money.
Regime: The kind of market: trending, sideways, calm or turbulent.

Saved: Your email, your finished lessons, experiments and reflections, and a session while you are signed in.
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