One slice of time on a chart, drawn from four prices: the first, the highest, the lowest and the last.

e.g.A 5-minute candle that opened at 20.00, reached 20.80, dipped to 19.90 and closed at 20.60.

The thick part of a candle, from its open to its close. Green when it closed higher, red when lower.

e.g.Open 20.00, close 20.60: a green body 0.60 tall.

The thin line above or below the body: how far price reached before it was pushed back.

e.g.A high of 20.80 over a close of 20.60 leaves a 0.20 wick on top.

How much traded during one candle, counted in shares.

e.g.2,900 shares in one candle against 800 in the one before: far more people traded it.

How much time each candle covers, from one minute to one month. The same prices, cut into shorter or longer candles.

e.g.One hour of prices is twelve 5-minute candles, or one 1-hour candle.

A market's main session: for US stocks, 9:30 to 16:00 New York time. The quieter hours either side are extended hours (ETH).

e.g.A stock can trade at 8:00 before the open, but most of its day happens between 9:30 and 16:00.

Buying first and selling later. You make money if price rises.

e.g.Buy at 40.00, sell at 42.00: 2.00 a share made.

Selling first, with borrowed shares, and buying back later. You make money if price falls.

e.g.Sell at 42.00, buy back at 40.00: 2.00 a share made.

The price you get into a trade at.

e.g.A buy at 40.00 has its entry at 40.00.

The price that closes your trade at a loss, chosen before you are in. It caps what one trade can cost.

e.g.Buy at 40.00 with a stop at 39.50: if price falls to 39.50, you are out.

The price that closes your trade at a profit, chosen before you are in.

e.g.Buy at 40.00 with a target at 41.00: if price reaches 41.00, you sell for the gain.

An order to get in straight away, at whatever price is available next.

e.g.Last price 40.20: a market buy fills at about that, maybe a little higher.

An order that fills only at your price or better. If price never comes to it, it never fills.

e.g.A limit buy at 40.00 waits while price sits at 40.20.

An order that waits for price to move through your price, then gets you in.

e.g.A buy stop at 41.20 gets you in only once price trades up to 41.20.

How much goes into one trade: the number of shares, or the money they cost.

e.g.250 shares at 37.94 is a $9,485 position.

What you lose if your stop is hit: the distance to the stop times your size. Traders call that amount 1R.

e.g.Buy at 37.94, stop at 37.54, 250 shares: $100 at risk, so 1R is $100.

How many times your risk the target would pay, if price reaches it.

e.g.Risk 0.40 a share to make 1.00 a share: 2.5 to 1.

A price where falls have stopped before, because buyers stepped in there.

e.g.Price fell to 23.00 twice and turned up both times.

A price where rises have stopped before, because sellers met them there.

e.g.Price rose to 25.00 three times and turned down each time.

Price moving one way in a repeating pattern. Up is higher highs and higher lows; down is lower highs and lower lows.

e.g.Lows at 50.00, 52.00 and 54.00, each above the last: an uptrend.

A short move against the trend that stops before it breaks the pattern.

e.g.In an uptrend, a dip from 43.00 to 42.00 that holds above the last low of 41.50.

The game mode. One chart, name and dates hidden, one plan, then the rest plays out.

e.g.Open it, read one paused chart, commit to one plan, and watch the rest play out. Then the next chart.

One play of one scenario. You have at most one in progress.

e.g.You are dealt a chart, then either place a plan and see the result, or skip it. Either way, that round is over.

One practice chart: real past prices, paused at one moment, with what came next hidden.

e.g.Two days of one real stock's one-minute prices, paused at 11:30, with the rest of the day hidden until you commit.

What you commit to before the reveal, and cannot change after.

e.g.Buy with a limit at 40.00, stop at 39.50, target at 41.00, $2,500 in.

Buy, Sell or No Trade. All three are complete decisions.

e.g.Buy if you expect a rise, Sell if you expect a fall, No Trade to sit the chart out.

A single instant, to the second.

e.g.Wednesday 11:30:00. On the 5m chart and the 1h chart that is a different candle, but the same moment.

The instant the chart is paused at. The same instant at every timeframe.

e.g.The chart stops at 11:30. Switch from 5m to 1h and it still stops at 11:30.

The timeframe the chart is drawn at, from 1m to 1D. A lens, not a decision.

e.g.The timeframe buttons above the chart: 1m, 2m, 5m, 15m, 30m, 1h and 1D. The same prices, cut into candles of different lengths.

How long the hidden part runs. Never shown to you.

e.g.The hidden part might run 270 minutes past the pause. You never see that number before you commit.

The moment the round ends and anything still open closes.

e.g.At 16:00 the round ends: a trade still open closes at the last price, and an order not yet filled never fills.

Closed because time ran out, not because a price was reached.

e.g.Target 41.00, price peaks at 40.80, then the deadline comes: the trade closes at the last price instead.

The money the plan risked. Every result is quoted as a multiple of it.

e.g.Risk $50 between entry and stop. Make $100 and that is +2R; hit the stop and it is −1R.

What the hidden part actually offered: Clean, Trap or Chop.

e.g.Clean: a good trade was there. Trap: the obvious read lost. Chop: nothing either way.

What a round teaches: a name, what happened, and a rule to use.

e.g.Protect your gain. Price fell fast, then came back. Choose your exit price before you enter.

The chart's name, kept hidden until the reveal.

e.g.The chart has no name while you plan, so you read the candles, not a company you remember.

Real past prices: what an instrument actually traded at.

e.g.A real stock's day, paused at 11:30, with the rest of that day hidden until you commit.