Mathematics plays a crucial role in shaping analytical and logical thinking among students, especially in Class 10, where it is one of the most important subjects. The Central Board of Secondary Education (CBSE) revises the syllabus regularly to keep it aligned with current educational needs. For the academic year 2020–2021, the Class 10 Mathematics syllabus was updated, focusing on essential concepts while reducing certain portions to ease the academic load on students.
In this blog, we will provide an elaborative look at the updated chapters, syllabus breakdown, and key topics so students can prepare more effectively (Refer).
CBSE Class 10 Maths Updated Syllabus (2020–2021)
1. Real Numbers
- Euclid’s Division Lemma
- Fundamental Theorem of Arithmetic
- Applications of HCF and LCM
2. Polynomials
- Zeros of a polynomial
- Relationship between zeros and coefficients of a polynomial
- Graphical representation of polynomials
3. Pair of Linear Equations in Two Variables
- Graphical and algebraic solutions
- Substitution, elimination, and cross-multiplication methods
- Applications in word problems
4. Quadratic Equations
- Solutions by factorization
- Completing the square method
- Quadratic formula
- Real-life applications
5. Arithmetic Progression
- nth term of an AP
- Sum of n terms
- Application-based problems
6. Triangles
- Similarity of triangles
- Areas of similar triangles
- Pythagoras theorem and its applications
7. Coordinate Geometry
- Distance formula
- Section formula
- Area of a triangle using coordinates
8. Introduction to Trigonometry
- Trigonometric ratios of specific angles
- Trigonometric identities
- Heights and distances
9. Circles
- Tangents to a circle
- Properties of tangents
10. Constructions
- Division of a line segment
- Construction of tangents to a circle
11. Areas Related to Circles
- Perimeter and area of a circle
- Areas of sector and segment
12. Surface Areas and Volumes
- Surface area and volume of combinations of solids
- Frustum of a cone
13. Statistics
- Mean, median, and mode of grouped data
- Graphical representation (histograms, frequency polygons, ogives)
14. Probability
- Classical definition of probability
- Simple problems based on everyday life
Deleted Portions in 2020–2021 Update
To reduce syllabus burden during the pandemic year, CBSE deleted certain portions, such as:
- Proof of some theorems (e.g., tangent to a circle theorem)
- Some higher-level construction tasks
- Complex applications in trigonometry and statistics
This made the syllabus more student-friendly while retaining the core concepts necessary for board exams and future studies.
How Students Should Prepare
- Focus on NCERT Textbook – Most board exam questions are directly from NCERT.
- Practice Previous Year Papers – Identify frequently asked questions.
- Strengthen Core Topics – Algebra, Trigonometry, Geometry, and Probability carry higher weightage.
- Use Visual Aids – Graphs, geometry constructions, and practical applications help in better understanding.
- Time Management – Solve sample papers within 3 hours to improve exam readiness.
FAQs
What are the major changes in the CBSE Class 10 Maths syllabus for 2020–2021?
The CBSE reduced the syllabus by removing certain topics such as some theorems in Geometry, advanced constructions, and higher-level statistics problems to reduce student workload.
Which chapters carry the most weightage in Class 10 Maths Board Exam?
Algebra (Polynomials, Quadratic Equations, Linear Equations), Trigonometry, Probability, and Statistics generally carry higher marks weightage compared to other chapters.
Is NCERT enough to prepare for Class 10 Maths board exams?
Yes, NCERT textbooks are the primary source for exams. Practicing NCERT questions and examples thoroughly is crucial, but students can also use sample papers and reference books for extra practice.
How can I score 90+ in CBSE Class 10 Maths?
Consistent practice, solving previous year papers, focusing on formulas, and managing exam time effectively are the key strategies to score above 90 in Maths.
Are the deleted topics from the 2020–2021 syllabus important for higher studies?
Yes, some deleted topics like advanced trigonometry or statistics concepts may reappear in higher classes (Class 11 & 12), so it’s beneficial to study them later for a strong foundation.
Where can I find the official CBSE syllabus for Class 10 Maths 2020–2021?
Students can download the updated syllabus directly from the official CBSE website or check the circulars released by their school.
Conclusion
The Class 10 Mathematics syllabus (2020–2021) was designed to make learning smoother while maintaining its rigor as like Kapdec. By focusing on the updated chapters and deleted portions, students can study smartly and improve their performance in the board exams. With the right balance of practice and conceptual clarity, scoring well in CBSE Class 10 Maths is absolutely achievable.
