{"id":34787,"date":"2026-03-11T17:02:40","date_gmt":"2026-03-11T10:02:40","guid":{"rendered":"https:\/\/times.edu.vn\/?p=34787"},"modified":"2026-03-30T15:05:40","modified_gmt":"2026-03-30T08:05:40","slug":"igcse-additional-maths-explain-questions","status":"publish","type":"post","link":"https:\/\/times.edu.vn\/en\/igcse\/igcse-additional-maths-explain-questions\/","title":{"rendered":"IGCSE Additional Maths Explain Questions: How to Write Clear, High-Scoring Answers in 2026"},"content":{"rendered":"

IGCSE<\/a>\u00a0Additional Maths \u201cexplain\u201d questions require you to justify<\/strong>\u00a0your answer with clear mathematical reasoning<\/strong>, not just calculations. To score highly, state the claim, cite the rule or definition, show the key steps through logical deduction<\/strong>, and finish with an explicit conclusion.<\/p>\n

Examiners reward precise links such as using gradient<\/strong>\u00a0and stationary points<\/strong>\u00a0to justify max\/min results, and strong contextual interpretation<\/strong>\u00a0in kinematics or rates-of-change problems. The most effective strategy is to use short, markable proof-style lines (with a supporting diagram only when needed) so every inference is visible and creditable.<\/p>\n

Answering IGCSE Additional Maths \u201cExplain\u201d Questions Effectively<\/strong><\/h2>\n

\"IGCSE<\/p>\n

\u201cExplain\u201d, \u201cShow\u201d, and \u201cProve\u201d are not \u201cextra writing\u201d tasks. They are assessments of mathematical reasoning<\/strong>: Whether you can justify each step through logical deduction<\/strong>, communicate a valid chain of implication, and interpret results correctly in context. If your work contains correct algebra but the reasoning is implicit, you often lose method marks because the examiner cannot award what is not shown.<\/p>\n

Based on our years of practical tutoring at Times Edu, the fastest improvement comes from treating \u201cexplain\u201d questions as a predictable genre. You use a fixed structure, targeted vocabulary, and a set of proof templates linked to the syllabus: Functions, calculus, vectors, coordinate geometry, and trig identities.<\/p>\n

What \u201cexplain\u201d really means in IGCSE Add Maths<\/strong><\/h3>\n

\u201cExplain\u201d means: S<\/strong>tate the claim, cite the principle, apply it cleanly, and close the loop<\/strong>. Your explanation must be checkable line by line. You are not \u201cdescribing what you did\u201d; you are proving why your result must be true.<\/p>\n

A critical detail most students overlook in the 2026 exam cycle is how often examiners award marks for a single phrase that signals justification: \u201csince\u201d, \u201ctherefore\u201d, \u201chence\u201d, \u201cbecause\u201d, \u201cit follows that\u201d. This is not style; it is evidence of logical connection.<\/p>\n

A high-mark template you can reuse<\/strong><\/h3>\n

Use this four-line template for most IGCSE additional maths \u201cexplain\u201d questions:<\/p>\n