Module 11 - Tides & Tidal Streams
Yachtmaster revision outcome
Use What Causes Tides? as an applied Yachtmaster decision, not just a definition list. The course outcome is that a Yachtmaster candidate can recognise the situation, choose a defensible action, and explain the check that supports it.
A paid revision product needs to build exam recall and cockpit judgement at the same time. Work this module by saying the cue, the risk, the calculation or rule if there is one, and the skipper action you would take before moving on.
What tells me this is a What Causes Tides? problem?
Why it matters: Stops keyword guessing and forces context.
Which rule, calculation, symbol, or procedure changes my decision?
Why it matters: Turns memory into a skipper action.
What chart, almanac, forecast, instrument, or crew factor could change the answer?
Why it matters: Builds margin and avoids brittle exam-only recall.
What would I do now, and what would make me delay or stop?
Why it matters: Connects the course to Yachtmaster-level command judgement.
| Revision step | What to say aloud | Why it matters |
|---|---|---|
| Recognise | What tells me this is a What Causes Tides? problem? | Stops keyword guessing and forces context. |
| Apply | Which rule, calculation, symbol, or procedure changes my decision? | Turns memory into a skipper action. |
| Check | What chart, almanac, forecast, instrument, or crew factor could change the answer? | Builds margin and avoids brittle exam-only recall. |
| Decide | What would I do now, and what would make me delay or stop? | Connects the course to Yachtmaster-level command judgement. |
Key points
- Recognition cue: Tides are caused by the gravitational pull of the Moon and Sun.
- Decision cue: UK has semi-diurnal tides — two highs and two lows per ~25 hours.
- Safety cue: High water occurs ~50 minutes later each day.
- Revision standard: answer in plain English, then state the source or cross-check you would use on board.
Continue studying Tides & Tidal Streams
This topic is part of Module 11. Open the full module for lessons, quizzes, flashcards, and revision tools.