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Subject guides

Study smarter for O Level, AS & A2 — exam technique, mark-scheme tricks and subject guides from the PapaMarks team.

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Subject guides
IGCSE Maths 0580 vs 0607: Which One Are You Actually Taking?

One takes two papers with a scientific calculator. The other takes three, needs a graphic display calculator, and ends w...

Aug 5, 2026 · 10 min read
Subject guides
IGCSE History 0470: Two Papers, Two Completely Different Skills

Paper 1 awards nothing for source evaluation. Paper 2 awards nothing for explanation. Cambridge's own assessment tables...

Aug 5, 2026 · 11 min read
Subject guides
IGCSE Geography (0460) Syllabus: The 2027 Rewrite, Explained Topic by Topic

Cambridge IGCSE Geography is restructured from 2027: ten topics, Paper 1 Physical and Paper 2 Human, no skills paper, an...

Aug 3, 2026 · 13 min read
Subject guides
IGCSE Physics 0625 Paper 6: Precision, Graphs and the Marks Everyone Loses

The only paper where you can get the right number and still lose the mark. The six experiments that keep coming back, wh...

Jul 25, 2026 · 10 min read
Subject guides
IGCSE Chemistry 0620 Paper 6: Every Qualitative Analysis Test (And Why You Should Not Memorise Them)

Cambridge prints the qualitative analysis table in your exam paper — so memorising precipitate colours buys you almost n...

Jul 25, 2026 · 9 min read
Subject guides
Plant Cell vs Animal Cell (IGCSE Biology 0610): Free Interactive 3D Cell Model

Rotate a free interactive 3D plant, animal or bacterial cell for IGCSE Biology 0610 and tap any structure to learn its f...

Jul 18, 2026 · 6 min read
Subject guides
IGCSE Business Studies (0450) Syllabus: Every Unit & Topic (2026)

The complete IGCSE Business Studies 0450 syllabus map — all 6 units and every topic, each linked to practice.

Jul 17, 2026 · 7 min read
Subject guides
IGCSE ICT (0417) Syllabus: Every Chapter & Topic (2026)

The complete IGCSE ICT 0417 syllabus map — theory chapters and practical skills, every topic linked to practice.

Jul 17, 2026 · 6 min read
Subject guides
IGCSE Economics (0455) Syllabus: Every Unit & Topic (2026)

The complete IGCSE Economics 0455 syllabus map — all 6 units and every topic, each linked to practice. Plan revision aro...

Jul 17, 2026 · 7 min read
Subject guides
IGCSE Biology (0610) Syllabus: Every Chapter & Topic (2026)

The complete IGCSE Biology 0610 syllabus map — all 21 chapters and every topic, each linked to practice. Biology is broa...

Jul 17, 2026 · 8 min read
Subject guides
IGCSE Chemistry (0620) Syllabus: Every Chapter & Topic (2026)

The complete IGCSE Chemistry 0620 syllabus map — all 12 chapters and every topic, each linked to practice. Plan revision...

Jul 17, 2026 · 7 min read
Subject guides
IGCSE Physics (0625) Syllabus: Every Chapter & Topic (2026)

The complete IGCSE Physics 0625 syllabus map — all 6 chapters from Motion & Forces to Space Physics, every topic linked...

Jul 17, 2026 · 7 min read