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February 19, 2025
Rank of Best Math Colleges and Universities in India, 2025

India has some great colleges and universities for mathematics and statistics. This document has a compilation of top 50 departments in India based on research, seminars, faculty strength and reputation.

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November 4, 2024
IIT Kanpur Mathematics Department Opens Olympiad Route for Admission

IIT Kanpur is starting admission through real Math Olympiad (IOQM, RMO, INMO). Other departments may join.

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October 29, 2024
Top 20 Mathematics Departments in Indian Universities in 2024

Top 20 mathematics programs in India at the college (undergraduate) level after high school in 2024.

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February 19, 2025
Rank of Best Math Colleges and Universities in India, 2025

India has some great colleges and universities for mathematics and statistics. This document has a compilation of top 50 departments in India based on research, seminars, faculty strength and reputation.

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October 29, 2024
Top 20 Mathematics Departments in Indian Universities in 2024

Top 20 mathematics programs in India at the college (undergraduate) level after high school in 2024.

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April 21, 2024
How to Build a Career in Mathematical Science - Steps and Resources

Career options in Mathematics, how to plan a successful academic, research or industry focussed career in school and college.

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February 5, 2024
The 'Cheenta' method of Olympiad Training

Cheenta has been working with thousands of school and college students since 2010. We have deviced a unique method of teaching non-routine mathematics, physics and computer science over the last 14 years. In this article we will discuss the main features of the Cheenta method. Two Pronged Approach A Cheenta program usually consists of two […]

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September 26, 2023
Unlocking Math Olympiad Success: Navigating the Maze of Fake vs. Real Olympiads

Explore the world of Math Olympiads and discover how to differentiate between Fake and Real Olympiads. We share valuable insights on the path to Olympiad success, emphasizing the importance of consistency and reputable organizers.

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November 30, 2022
How to teach mathematics : an experiment with triangular numbers and splitting of plane

We discuss how to appreciate the beauty of mathematics and how to communicate the same to children using experiments and pattern recognition.

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October 18, 2022
Sword does not need to remember how the whetstone looks

Imagine sharpening your sword with a whetstone. The job of the stone is to sharpen the sword. It does not matter what color the stone is. Cheenta programs are designed like whetstones. They are supposed to sharpen the creativity and problem solving skills through a slow but sure process. They involve thousands of thought provoking […]

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April 23, 2022
How to prepare for Olympiads and other contests in Middle School?

Tools for middle school children and their parents. How to help kids fall in love with mathematical science and prepare them for math and sciecnce olympiads, ISI, CMI Entrances and other contests in the long run?

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March 19, 2022
Junior Data Science Olympiad: Resources

Junior Data Science Olympiad is suitable for students of grade 9 and above, interested in Data Science. Check out the resources for the Junior Data Science Olympiad in this post. Curriculum Algebra Trigonometry Coordinate Geometry Combinatorics Data Visualization Algebra AM, GM, and Cauchy Schwarz Inequality Rational Root Theorem, Remainder Theorem Roots of a polynomial Trigonometry […]

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March 19, 2022
Mahalanobis Olympiad: Resources

Mahalanobis Olympiad is suitable for College and University Students, interested in Statistics and Mathematics. Check out the resources for the Mahalanobis Olympiad in this post. Curriculum High School Mathematics Calculus and Linear Algebra Probability Statistics High School Mathematics Coordinate Geometry Trigonometry Complex Numbers Permutation and Combinatorics Calculus and Linear Algebra Pre Calculus One Variable Calculus […]

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December 2, 2024
Books for the Australian Maths Comepetition(AMC)

Books play a significant role in the preparation for the Singapore Mathematics Olympiad. In Cheenta we recommend a few books based on their age and grades that suit them. Books for Preliminary AMC Books for Advanced AMC

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November 1, 2024
Exploring “102 Combinatorial Problems”: A Resource for Olympiad Enthusiasts and Combinatorial Thinkers Alike

Titu Andreescu and Zuming Feng have given us a beautiful book about combinatorial problems which help students in olympiad preparation.

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February 28, 2022
A beautiful book from Eastern Europe for Math Olympiads, ISI CMI Entrance and joy of doing math

Explore this beautiful book on problems useful for Math Olympiad, ISI CMI Entrance. It is written by three Russian authors. Title: Selected Problems and Theorems in Elementary Mathematics – Shklyarsky, Chentsov, Yaglom

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October 28, 2025
Sundarban Faculty Training – Week 6 Report (23rd October 2025)

In Week 6 of the Sundarban Faculty Training, teachers learnt how to use ChatGPT to make lesson planning, question-making, and teaching easier. They explored how AI tools can save time, spark creativity, and support students’ learning in daily classroom activities.

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October 28, 2025
Sundarban Faculty Training – Week 5 Report (8th October 2025)

In the fifth week of the Sundarban Faculty Training, the teachers focused on improving their classroom assessment and lesson-planning skills. They learned how to properly check and evaluate students’ answer sheets, understanding how to mark fairly and give supportive feedback to children. This week also introduced them to the teaching pattern for nursery students. The […]

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October 28, 2025
Sundarban Faculty Training – Day 4 Report (25th September 2025)

On the fourth day of the Sundarban Faculty Training, all four teachers joined at Cheenta Academy’s Kalighat office. They shared tourism videos, created GK questions, learnt Google Sheets, practised Bengali যুক্তাক্ষর, and solved counting sums.

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October 28, 2025
Sundarban Faculty Training – Week 3 Report (18th September 2025)

On 18th September 2025, the third class of the Sundarban Faculty Training was held at Cheenta Academy’s Kolkata office. Only Rupa and Chandra attended, with Chandra showing consistent participation. The session introduced Canva for creating business posters, developed a roadmap for Sundarban Tourism, and planned local surveys along with learning the basic geography of the region.

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October 28, 2025
Sundarban Faculty Training – Week 2 Report (11th September 2025)

On 11th September 2025, the second class of the Sundarban Faculty Training was held at Cheenta Academy’s Kolkata office. Two new teachers, Rupa and Brihospoti, joined the programme, while Sudipti and Suveccha were absent. The session introduced Google Docs for lesson planning and included discussions on leadership and business development, with ideas for small enterprises in the Sundarban region.

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October 28, 2025
Sundarban Faculty Training – Week 1 Report (28th August 2025)

On 28th August 2025, four teachers from the Sundarban region began their training at Cheenta Academy’s Kolkata office. The first day focused on self-introductions, classroom practices, integrated learning, and computer basics, marking an important step towards teacher empowerment.

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October 25, 2025
CatScan - August Diary

August marks the pivotal month when the Cat-Scan app takes its final shape. The focus shifts from coding individual features to integrating the app, preparing for user testing, and fine-tuning the database and user interface. By the end of this month, the core functionalities—image capture, pupil detection, and AI predictions—are up and running, ready for […]

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October 25, 2025
CatScan - June Diary

June opens with a practical goal: turn May’s plan into a working, pupil-first pipeline. The first week focuses on data hygiene. A simple utility groups images into clean folders, fixes broken names, and flags duplicates. Students can now find, compare, and reuse images without guesswork. Attention shifts to what a field worker will actually see. […]

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October 18, 2025
CatScan - May Diary

The month begins with a new cohort of students joining the program and meeting a clear reality: in many villages, a cataract check can cost an entire day’s travel and lost wages. The team frames the business problem in plain terms—early screening must happen close to home, be simple to use, and lead to timely […]

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July 1, 2025
Australian Mathematics Competition - 2021 - Junior years - Grade 7 & 8 - Questions and Solutions

Try out the problems from Australian Math Competition - 2021 - Junior for Grade 7 and 8

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November 12, 2025
AMC 10A 2025

Problem 1 Andy and Betsy both live in Mathville. Andy leaves Mathville on his bicycle at $1: 30$ traveling due north at a steady 8 miles per hour. Betsy leaves on her bicycle from the same point at 2:30, traveling due east at a steady 12 miles per hour. At what time will they be […]

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September 8, 2025
IOQM 2025 Questions, Answer Key, Solutions

Here are the problems and solutions of IOQM (Indian Olympiad Qualifier in Mathematics) 2025

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August 24, 2025
NMTC - Screening Test – Ramanujan Contest 2025

Practice NMTC questions of Ramanujan 2025 and sharpen problem-solving skills and prepare for the National Mathematics Talent Contest.

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August 24, 2025
NMTC - Screening Test – KAPREKAR Contest - 2025

Practice NMTC questions of Kaprekar 2025 and sharpen problem-solving skills and prepare for the National Mathematics Talent Contest.

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August 24, 2025
BHASKARA Contest - NMTC - Screening Test – 2025

Here are the NMTC 2025 - Bhaskara Contest Questions and Solutions of the Screening Test, one of the best Mathematical Olympiads in India.

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August 24, 2025
NMTC - Screening Test – GAUSS Contest - 2025

Here is the NMTC 2025 - Gauss Contest Questions and Solutions of the Screening Test, one of the best Mathematical Olympiads in India.

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July 1, 2025
Australian Mathematics Competition - 2013 - Junior years - Grade 7 & 8 - Questions and Solutions

Try out the problems from Australian Math Competition - 2013 - Junior grade 7 and 8

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July 1, 2025
Australian Mathematics Competition - 2023 - Middle Primary - Grade 3 & 4 - Questions and Solutions

Try out the problems from Australian Math Competition - 2015 - Middle Primary

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May 17, 2025
NSEJS (2020) - Problems & Solution

Problem 1 Gravitational collapse is the contraction of an astronomical object under its own gravity. This draws the matter inwards towards the centre of gravity. A neutron star is an example of the collapsed core of a giant star. A certain neutron star of radius 10 km is of mass \(1.5 M_{\odot}\). The acceleration due […]

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May 15, 2025
NSEJS [2010] Problems & Solution

Problem 1 Which one of the following statements is INCORRECT? (A) If the net force on a body is zero, its velocity is constant or zero(B) If the net force on a body is zero, its acceleration is constant and(C) If the velocity of a body is constant, its acceleration is zero(D) A body may […]

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May 12, 2025
ইন্টিগ্রেশন-এর কম বেশি

সমাকলন অথবা ইন্টিগ্রেশনের মানেটুকু বুঝলে আই-এস-আই প্রবেশিকার এই অঙ্কটা করা যাবে। ISI Entrance 2025-এর অঙ্ক নিয়ে আলোচনা।

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February 22, 2024
পিয়ানোর চতুষ্কোণ, তাতে ‘মাত্রা’ হলো মাত্রাছাড়া!

(২১-শে ফেব্রুয়ারীর প্রতি) ‘মাত্রা’ অথবা ডাইমেনশন কাকে বলে? একটু তলিয়ে ভাবতে গেলে কিন্তু সব গোলমাল হয়ে যায়। এই এক টুকরো লেখায়, আমরা ডাইমেনশন নিয়ে একটু ভাবা প্র্যাকটিস করব। একটা বিন্দু-র dimension কি? একটা সরলরেখারই বা dimension কি? একটা কাগজের টুকরোর dimension কি হবে? চট করে ভাবলে মনে হয় যে কিন্তু কেন এরকম মনে হচ্ছে? তুমি […]

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October 20, 2019
Really understanding Direct Limit, Inverse Limit, and Hom

Direct Limit, Inverse Limit, and Hom are three ideas from category theory that are useful in many branches of mathematics. A deep understanding of them can be very helpful in the long run. In the following video, we draw schematic pictures and gain real intuition behind these abstract ideas. This is clearly one of the most important videos of our production.

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September 22, 2019
দুনিয়া যদি হয় হাইপারবোলিক!

হাইপারবোলিক জ্যামিতির জগৎটা একদমই অন্যরকম। এখানে ইউক্লিড খুঁড়িয়ে খুঁড়িয়ে হাঁটেন। এখানে সমান্তরাল রেখা মিশে যায়। এখানে সরলরেখা দেখায় আঁকা বাঁকা।

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February 21, 2019
বিস্মৃতপ্রায় তিন বাঙালি গণিতজ্ঞ এবং একটি পরিশিষ্ট

আন্তর্জাতিক মাতৃভাষা দিবস উপলক্ষে চিন্তা গণিত কেন্দ্রের একটি প্রয়াস হল বিস্মৃতপ্রায় তিন বাঙালি গণিতজ্ঞ ।এই লেখাতে তিনজন বাঙালি গণিতজ্ঞকে শ্রদ্ধাজ্ঞাপন করেছি

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February 20, 2019
কল্পনার গোল্লাছুটে যুক্তির দরবেশ!

যুক্তিকে বড়ো কাঠখোট্টা ভদ্রলোকের মত মনে হয়। কল্পনা তার বিপ্রতীপে দাঁড়িয়ে থাকা এক অস্থির মতি বালিকা। সে যেন রেবা নদীর তীরে ছুটোছুটি করে খেলছে। আর যুক্তি তাকে বকাবকি করছে। শাসনে রাখতে চাইছে।
অথচ ব্যাপারটা হয়ত একটু অন্যরকম। হয়ত কল্পনা এক বৃত্তে ছুটে চলেছে। যুক্তি সেখানে এক দরবেশের মত এসে হাজির। সে তাকে নতুন পথ দেখিয়ে নিয়ে যাবে আরও উন্মুক্ত অস্থিরতায়। আর আমরা যারা পড়ুয়া তারা মালবিকার মত অনিমিখে তাকিয়ে থাকব পথের দিকে। কে জানে অগ্নিমিত্র আসবেন কিনা!

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February 18, 2019
অসমীকরণ : সংখ্যাদের সম্পর্কের গল্প

প্রাথমিক শিক্ষার্থীদের অন্যরকম অঙ্কের স্বাদ দেওয়ার জন্য দশকথা সিরিজ করা হয়েছে। আজ দশকথার চতুর্থ কথা।আমরা অসমীকরণ ব্যাপারটি বলব ।

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January 18, 2019
বহুভুজ :বন্ধুদের বিন্দু ভেবে দেখি

বাংলা মাধ্যমের প্রাথমিক শিক্ষার্থীদের একটু অন্যভাবে বা অন্যরকম অঙ্কের স্বাদ দেওয়ার জন্য দশটি লেখার একটি সিরিজ তৈরি করা হয়েছে । যার নাম দশকথা । আজ দশকথার তৃতীয় কথা। এই লেখাতে আমরা বহুভুজের ব্যাপারটি বলব |

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January 8, 2019
জাদু বর্গ

বাংলা মাধ্যমের প্রাথমিক শিক্ষার্থীদের একটু অন্যভাবে বা অন্যরকম অঙ্কের স্বাদ দেওয়ার জন্য দশটি লেখার একটি সিরিজ তৈরি করা হয়েছে । যার নাম দশকথা । আজ দশকথার দ্বিতীয় কথা। এই লেখাতে আমরা ম্যাজিক স্কয়ার ব্যাপারটি বলব |

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December 29, 2018
আয়নাবাজি

বাংলা মাধ্যমের প্রাথমিক শিক্ষার্থীদের একটু অন্যভাবে বা অন্যরকম অঙ্কের স্বাদ দেওয়ার জন্য দশটি লেখার একটি সিরিজ তৈরি করা হয়েছে । যার নাম দশকথা । আজ দশকথার প্রথম কথা। এই লেখাতে আমরা দর্পণ প্রতিসাম্যতা ব্যাপারটি বলব । আপনাদের মন্তব্য-প্রতিমন্তব্য  চিন্তা গণিত কেন্দ্রের এই উদ্যোগকে এগিয়ে নিয়ে যেতে সাহায্য করবে ।

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