What we cover
What your child works on in CBSE Class 10 Maths
The 2026-27 syllabus has seven units worth 80 board marks. Standard and Basic share this content; the papers differ in how deeply they test it.
- 01
Real numbers
Unit I · 6 marksPrime factorisation through the Fundamental Theorem of Arithmetic, HCF and LCM, then proofs that √2, √3 and √5 are irrational. Marks slip when a proof by contradiction never states its assumption.
Fundamental Theorem of Arithmetic · HCF and LCM by prime factors · Irrationality proofs
- 02
Polynomials and pairs of linear equations
Unit II · Algebra, 20 marks in allZeros of a polynomial found graphically and algebraically, how zeros relate to coefficients, and linear pairs solved by graph, substitution or elimination. Consistency conditions are often misjudged.
Zeros and coefficients · Substitution and elimination
- 03
Quadratic equations and arithmetic progressions
Unit II · Algebra, 20 marks in allQuadratics solved by factorisation and the quadratic formula, the discriminant and the nature of roots, and the nth term and sum of an AP. Word problems cost marks when the unknown is never defined.
Quadratic formula · Discriminant and nature of roots · nth term and sum of n terms
- 04
Coordinate geometry
Unit III · 6 marksThe distance formula and the section formula for internal division, used for lengths, midpoints and dividing points. Most errors are sign slips or a ratio applied back to front.
Distance formula · Section formula
- 05
Triangles and circles
Unit IV · 15 marksSimilar triangles, the Basic Proportionality Theorem with its proof, the similarity criteria, and two tangent theorems proved in full. Pupils who know every result still lose marks by skipping a reason.
Basic Proportionality Theorem · AA, SSS and SAS similarity · Tangent theorems
- 06
Trigonometry
Unit V · 12 marksRatios of an acute angle, values from 0° to 90°, identities built on sin²A + cos²A = 1, and heights and distances with at most two right triangles. An unlabelled diagram is the usual trap.
Standard angle values · Proving identities · Angles of elevation and depression
- 07
Areas and volumes
Unit VI · Mensuration, 10 marksAreas of sectors and segments, with segments kept to central angles of 60°, 90° and 120°, and surface areas and volumes of two joined solids. Counting a hidden face is the classic slip.
Sectors and segments · Combined solids
- 08
Statistics and probability
Unit VII · 11 marksGrouped mean by the direct, assumed-mean and step-deviation methods, grouped median and mode, and classical probability. Misread class limits and half-listed sample spaces cost many marks.
Step-deviation mean · Median and mode of grouped data · Dice and card problems
Constructions, the frustum and ogives are absent from the 2026-27 syllabus, so older guidebooks can send a learner revising unexamined chapters.
How lessons run
How Class 10 Maths lessons run across the CBSE school year
Class X moves quickly from the first periodic test to pre-boards and the board paper. Lessons keep pace with your child's school and the Qatari week.
- 01
Find the gaps first
The first lessons use a short mixed paper across all seven units, plus recent school tests, to show which chapters are secure, which need reteaching, and whether Standard or Basic suits the target.
- 02
Plan around the school calendar
The plan follows the order your child's school teaches the NCERT textbook, with extra time before periodic tests and pre-boards. Sessions sit on school nights after homework or on Friday and Saturday, the Qatari weekend.
- 03
Teach the method, then the write-up
Each topic is understood first, then written the way an examiner reads it: given, reason, conclusion. The marking scheme gives half marks for steps such as naming the AA criterion, so every line counts.
- 04
Rehearse the paper's shape
Timed work covers all five sections, the assertion-reason items and the four-mark case studies, always without a calculator. Your child learns to pick between internal choices quickly and keep the final minutes for checking.
- 05
Report and adjust
Brief written notes on progress go to the family after lessons, and a parent may join the call to watch. Before the board examination the tutor revisits the weakest units and any internal assessment work still due.
Lessons use whichever of Teams, Google Meet or Zoom suits your household, WhatsApp is kept for messages, and Ramadan scheduling tracks each year's announced hours.