Chennai Guru Editorial Team · Updated 9 October 2026 · Based on official sources and published guidance
Khan Academy free lessons help students and job seekers build strong maths, science and basic finance skills at their own pace.
Course Details
| Provider | Khan Academy |
|---|---|
| Level | Beginner to Advanced |
| Duration | Self-paced |
| Mode | Online and mobile app |
| Cost | Free |
| Certificate | No formal certificate; progress tracking |
Enrollment link: Start on Khan Academy →
Official page: https://www.khanacademy.org/
In this guide
- Course Details and Enrollment Link
- About the programme
- Is it right for you?
- Key Points at a Glance
- What you can learn
- Who can join
- How to join step by step
- Tips from Chennai Guru
- A four-week study plan
- Staying safe while you apply
- Common mistakes to avoid
- Jobs and next steps
- Key terms explained
- Frequently asked questions
About Khan Academy free lessons
Khan Academy is a non-profit learning site with video lessons, practice questions and quizzes. It covers school maths, science, economics and test preparation.
Many competitive exams in Tamil Nadu, such as bank and staff selection exams, test aptitude and maths. Weak basics slow candidates down. Daily practice here can fix those gaps without any cost.
Key Points at a Glance
- Provider: Khan Academy.
- Cost: Free.
- Time needed: Self-paced.
- Format: Online and mobile app.
- Certificate: No formal certificate; progress tracking.
Is it right for you?
This option works best for these people: school and college students who want stronger basics; exam aspirants who need to revise aptitude topics; and adults returning to study after a break. If that sounds like you, read on. If not, compare it with the related guides at the end of this page.
Before you start, plan your time and money. The time needed is self-paced. The cost is: free. Check these two points first, because they decide whether you can finish.
What you can learn
- Arithmetic, algebra and geometry from basic to advanced
- Statistics and probability for data jobs
- Physics, chemistry and biology concepts
- Personal finance and economics basics
- Computer programming and computing ideas
Who can join
- School and college students who want stronger basics.
- Exam aspirants who need to revise aptitude topics.
- Adults returning to study after a break.
How to join step by step
- Open the Khan Academy website or app.
- Sign up so your progress is saved.
- Try a course challenge to see your level.
- Do a short daily practice set and watch lessons for weak topics.
- Check your mastery report every week.
Tips from Chennai Guru
Pick a fixed time each day, even if it is only twenty minutes. Work through the practice questions before watching the video, so you learn what you do not know. Write down every mistake in a notebook and revisit it after three days. This habit helps in exams where speed and accuracy matter.
A four-week study plan
- Week 1: start with arithmetic, algebra and geometry from basic to advanced.
- Week 2: move on to statistics and probability for data jobs.
- Week 3: practise physics, chemistry and biology concepts.
- Week 4: revise your notes, review personal finance and economics basics and apply the skills in a small task.
Write short notes after every session. Review them on the weekend.
Staying safe while you apply
- Use only the official website, khanacademy.org, for forms and payments.
- Read the rules and fees on the official page before you share documents.
- Keep copies of every receipt, email and application number.
- Be careful with calls or messages that ask for money to confirm a seat.
Common mistakes to avoid
Do not only watch videos without solving questions. Do not jump between many topics. Do not ignore weak areas because they feel difficult.
Jobs and next steps
Strong maths helps in data entry, accounts, banking, teaching and technical roles, and in most aptitude rounds for freshers. Search current vacancies on the Chennai Guru jobs page and compare more options on the trainings page.
Key terms explained
Mastery: A level that shows you can solve a topic reliably.
Aptitude: The ability to solve numerical and logical problems.
Practice set: A group of questions to test one topic.
Frequently asked questions
Is Khan Academy free?
Yes. The lessons and practice are free.
Can I get a certificate?
There is no formal certificate. You can show your progress report instead.
Is it only for school students?
No. Adults also use it to revise basics.
Does it work on a phone?
Yes. There is a mobile app and the site works in a browser.
Official links
Related trainings on Chennai Guru
Build a stronger profile by pairing this guide with one of these.
- DIKSHA learning platform Guide 2026
- Skill India Digital Hub: Free Courses and Digital Certificates
- CSC Academy courses Guide 2026
Disclaimer: Chennai Guru is independent and is not affiliated with Khan Academy. Fees, dates and eligibility can change, so confirm them on the official page before you pay or apply. Do not pay any agent who promises a guaranteed seat. Finishing this programme supports your profile but does not guarantee a job.