Diagram, givens, target
Mark every given on the diagram and state the target clearly. Start from a relationship that connects exactly those quantities.
IGCSE Year 10 / Mathematics / Curriculum
Trigonometry: structured theory, worked examples, answered practice, and a mastery checklist for IGCSE Year 10.
Unit
The essential chapter ideas in a clear sequence before practice.
Mark every given on the diagram and state the target clearly. Start from a relationship that connects exactly those quantities.
Every geometric step needs a property, theorem, or definition. A result without justification is not a complete proof.
Length, area, volume, and angle use different units. Round only at the end and keep sufficient intermediate precision.
Mathematics
Follow the method step by step and check why every step is valid.
A right triangle has perpendicular sides 9 cm and 12 cm. Find its hypotenuse and area.
Mathematics
Start from the board specification and work topic by topic before full papers.
The structure follows the official textbook layout and is used to organise study.
The areas that usually create mistakes or need extra revision.
Hypotenuse 15 cm, area 54 cm².
Before calculating, explain the key idea from “Pythagoras” and which conditions must be checked.
The answer should show not only which rule is used for “Pythagoras”, but also why it is valid here.
Trigonometry
Try independently, use the hint if needed, then open the answer guide.
1. Explain the idea and give one correct foundation example for “Pythagoras”.
Write the givens, a useful representation or rule, and only then calculate.
A complete answer defines “Pythagoras”, shows equivalent steps, and includes a final check.
2. Solve an application and show every intermediate step for “Sine, cosine and tangent”.
Write the givens, a useful representation or rule, and only then calculate.
A complete answer defines “Sine, cosine and tangent”, shows equivalent steps, and includes a final check.
3. Compare a correct and an incorrect approach and justify the difference for “Bearings introduction”.
Write the givens, a useful representation or rule, and only then calculate.
A complete answer defines “Bearings introduction”, shows equivalent steps, and includes a final check.
4. Create a short exam-style question and check your answer for “Angles of elevation/depression”.
Write the givens, a useful representation or rule, and only then calculate.
A complete answer defines “Angles of elevation/depression”, shows equivalent steps, and includes a final check.
Where to start: textbook, daily material, PDFs, videos, and worked examples.
Targeted practice before full tests so coverage is clear.
How to measure progress in this chapter and when it enters a cumulative mock.
What to do after finishing the chapter and how it connects to the next unit.
Note: for the official examinable syllabus of each school year, always confirm with the school, tutor, and current Ministry/IEP announcements.