What GCSE is
GCSE (General Certificate of Secondary Education) is the national qualification taken at the end of Key Stage 4 (Year 11, age 16) under the statutory National Curriculum. Most students sit 8-10 GCSEs covering a compulsory core plus 3-4 chosen options. The qualifications are awarded by the four English-market exam boards: AQA, Pearson Edexcel, OCR, and WJEC Eduqas. Boards are chosen by the school per subject, so a typical school might use AQA for English, Edexcel for Maths, and OCR for Computer Science all in the same year group.
Wales, Northern Ireland, and Scotland have their own variants. Wales kept A*-G grading for most subjects; Northern Ireland uses a hybrid scale (A*-G with a C* grade); Scotland has its National 5 / Higher ladder instead.
The 9-1 grading reform
England moved GCSEs to numerical 9-1 grading in 2017 (Maths and English first, then rolling out to other subjects). The reform aimed to increase discrimination at the top end and make the qualifications "more rigorous". Approximate equivalence: 9 is exceptional (roughly top 4-5% nationally); 8 is high A* equivalent; 7 is the old A grade; 6 is high B; 5 is the "strong pass" (low B or high C); 4 is the "standard pass" (old C); 3 is the old D; 2-1 maps to the old E through G range; U is unclassified.
In practice, sixth forms and apprenticeships often ask for 5+ in Maths and English (not just 4). A grade-5 floor is the de-facto standard for academic post-16 routes.
Compulsory subjects
English Language and English Literature
Two separate GCSEs. English Language tests reading-comprehension and writing skills with unseen passages and creative or persuasive writing tasks. English Literature is text-based: Shakespeare, a 19th-century novel, modern prose or drama, and a poetry anthology with unseen poetry comparison. Set texts vary by board (AQA, Eduqas, OCR, and Edexcel each have their own canon); knowing the specific texts your child is studying matters for tutor selection.
Maths
Single GCSE, tiered: Foundation (grades 1-5) or Higher (grades 4-9). The choice is made by the school based on predicted grade. Three papers: one non-calculator and two calculator. AQA, Edexcel, and OCR are the main boards; question style differs subtly between them.
Sciences
Two pathways. Combined Science covers Biology, Chemistry, and Physics across two GCSEs (six papers total but combined into a double award worth two grades, for example 7-7). Triple Science (also called Separate Science) is three separate GCSEs, one for each science. Triple covers more content per subject and is the standard preparation for A-level Sciences. Choosing between Combined and Triple is usually a Year 9 decision.
Optional subjects
After the compulsory core, students choose 3-4 optional subjects from a pool that typically includes humanities (History, Geography, Religious Studies); modern languages (French, Spanish, German, Mandarin, school-dependent); creative arts (Art & Design, Music, Drama, Media Studies, Film Studies); technical subjects (Computer Science, Design & Technology, Food Preparation & Nutrition); and others including Business Studies, Economics, Sociology, Psychology, PE, and Citizenship.
School option blocks (which subjects can be taken alongside which) constrain choices more than parents sometimes realise; children may not be free to pick any combination.
What GCSE tutoring usually focuses on
Year 11 exam-prep tutoring
The most common pattern: weekly subject tutoring through Year 11 in the lead-up to May / June exams. Tutors work through past papers, identify question types the student finds hardest, and drill the techniques mark schemes reward. By spring of Year 11, most of the content has been covered in school; tutoring is largely about practice density and refining technique.
Year 10 content-coverage tutoring
For students starting Year 10 with weak foundations (for example predicted 3-4 in Maths), Year 10 tutoring is about building real understanding rather than exam technique. There's no point drilling past papers if the underlying grasp isn't there. Returns from Year 10 tutoring are often higher than Year 11 for grade-jump cases; there's time to genuinely rebuild.
Targeted weak-spot tutoring
Sometimes the issue is one specific area within a subject: algebra in Maths, poetry analysis in English Lit, organic chemistry in Chemistry. Short-burst tutoring focused on that area, rather than ongoing weekly tuition, is sometimes the right call.
Choosing a GCSE tutor
Match the exam board. Find out which board your child sits each subject and look for tutors who explicitly mention teaching that board recently. Generic "GCSE Maths tutor" claims are weaker than "AQA GCSE Maths 8300, taught the last three exam series". Ask about set texts (English Literature) and module choices (Sciences, History); different boards have different texts and module options, so tutors familiar with the specific configuration your child is sitting save weeks of ramp-up. Ask how they coach exam technique. Mark scheme literacy (knowing what gets credit and how to phrase answers) is the single highest-leverage thing a tutor adds late in Year 11. Foundation versus Higher tier in Maths matters too: a Higher-tier tutor isn't automatically a stronger Foundation tutor, as the pedagogy differs.
What can go wrong
Tutoring without past-paper practice: content coverage without timed past-paper work doesn't translate to exam performance. By March of Year 11, weekly sessions should be doing or reviewing past papers. Mismatched board: a tutor who teaches AQA when your child sits Edexcel will gradually go off-spec, and sometimes parents don't realise until late. Too many subjects too late: adding three new subject tutors in March of Year 11 rarely helps. Better to focus tightly on one or two subjects with the biggest grade headroom.