147
7
43
Free Course
Fundamentals of Physics
5
(45)
28h44m
23 exercises
Free Course
Physics for beginners
5
(1)
1h57m
2 exercises
Free Course
Biology
4.7
(27)
27h28m
36 exercises
Free Course
Introduction to Biology
4.7
(62)
1h41m
16 exercises
Free Course
Chemistry
4.5
(56)
26h09m
23 exercises
Free Course
Chemistry Basics
4.7
(34)
16h53m
44 exercises
Thermodynamics
World Geography
Algebra basics
Physical Geography
Intermediate Algebra
Electromagnetism
Advanced Algebra
Modern Physics
UK geography
Geoscience
Linear algebra
Quantum Physics
Astrophysics
Algebraic Geometry
Seismology
Topology
Marine Magnetometry
Nuclear Physics
Radioactivity
General Relativity
Free CourseUndergraduate Linear Algebra Full Course
New
29h54m
34 exercises
Free CourseLinear Algebra Essentials
New
3h00m
16 exercises
Free CourseComplete U.S. History
New
80h21m
34 exercises
Free CourseAmerican History Homeschool Curriculum
New
3h56m
22 exercises
Free CourseCreative Writing Through Literature - Learn the Storytelling Craft of Great Fiction
5
(1)
2h22m
6 exercises
Free CourseFinancial Markets
New
27h51m
23 exercises
Free CourseRelativity Course: Special and General Relativity, Tensors, Black Holes, Gravitational Waves and Cosmology
5
(2)
19h01m
39 exercises
Free CourseAncient History Curriculum - from Creation through the Resurrection
New
5h47m
19 exercises
Free CourseGeneral Philosophy: From Descartes to Hume, Knowledge, Perception and Free Will
5
(1)
6h53m
32 exercises
Free CourseProbability and Distributions Crash Course
New
10h37m
43 exercises
Free CourseBasic Statistics Full Course: Descriptive Stats, Hypothesis Testing, ANOVA, Regression and Power
New
8h46m
42 exercises
Free CourseCultural Anthropology 101: Culture, Kinship, Religion, Politics and Global Issues
5
(3)
6h56m
18 exercises
Free CourseTensors for Beginners: Learn Tensor Calculus Fundamentals
New
3h06m
16 exercises
Free CourseStructural Geology: Mapping, Stereonets, Stress, Strain, Faults and Folds
New
5h31m
45 exercises
Free CourseMathematical Logic
New
12h19m
46 exercises
Free CourseAlgebraic geometry
New
38h05m
50 exercises
Free CourseAlgebra 2 Course
New
3h03m
17 exercises
Free CourseDiscrete Math
4.3
(3)
9h38m
43 exercises
Free CourseBayesian Statistics Lecture
New
22h23m
37 exercises
Free CourseStatistical Thermodynamics
New
3h52m
39 exercises
Free Course
History of the World to 1500 CE
4.6
(22)
31h11m
25 exercises
Free Course
Complete U.S. History
New
80h21m
34 exercises
Free Course
Geography
4.6
(21)
28h42m
11 exercises
Free Ebook + Audiobook
Population and Settlement Geography: Why People Live Where They Do
Free Course
Foundations of Modern Social Theory
5
(2)
19h44m
20 exercises
Free Ebook + Audiobook
Socialization and Identity: How We Become Who We Are
Thousands of online courses in video, ebooks and audiobooks.
To test your knowledge during online courses
Generated directly from your cell phone's photo gallery and sent to your email
Download our app via QR Code or the links below:.
The Bronze Age Collapse: When an Entire Interconnected World Fell Apart
Around 1200 BCE several Mediterranean civilisations collapsed within decades. Here is what happened, the leading explanations, and why it still matters.
Correlation Is Not Causation: How to Read a Data Chart Without Being Fooled
Two lines moving together rarely prove one caused the other. Learn the traps behind correlation and how analysts test for real causal links.
Sample Size and Margin of Error: How a Survey of 1,000 People Represents Millions
Why polling 1,000 people can describe a whole country, what margin of error really means, and how bad sampling ruins good statistics.
The Silk Road: How a Network of Trade Routes Connected the Ancient World
The Silk Road was never one road, and silk was only part of the story. A clear look at the routes, the goods, the ideas and why the network faded.
Why Steel Ships Float: Buoyancy and Archimedes’ Principle Explained
Density, displacement and pressure explain why a steel ship floats while a steel bolt sinks. A clear introduction to buoyancy for beginners.
The Pythagorean Theorem: What It Is and How to Use It
Learn what the Pythagorean theorem is, why it works, and how to use this essential geometry rule to find the sides of right triangles.
What Is Stoicism? A Beginner’s Guide to the Ancient Philosophy
Discover the core ideas of Stoicism, the philosophers behind it, and practical ways to apply its wisdom to daily life.
Why Every World Map Is Wrong: Map Projections Explained
Every flat map distorts the round Earth. Learn what map projections trade away, why Greenland looks huge, and how to read maps critically.
Build a stronger educational foundation with free online courses designed for students, lifelong learners, teachers, and anyone preparing for school examinations or academic study. Explore structured lessons across mathematics, natural sciences, humanities, and social sciences. Each course supports independent learning through clear explanations, instructional content, and exercises that reinforce essential concepts, improve problem-solving skills, and encourage knowledge retention. Courses are free and include free certification after the required learning activities are completed.
Choose learning resources suited to introductory study, curriculum revision, or advanced subject development. Strengthen mathematical reasoning with Algebra, spatial analysis with Geometry, mathematical modeling with Calculus, and data interpretation with Statistics. Additional areas include:
Go beyond general coursework with focused learning pathways. Study American History, progress from Algebra Basics to Intermediate Algebra, or connect quantitative methods with technology through Statistics for Data Science. Learners interested in advanced scientific theory can also explore Quantum Physics. These resources support conceptual understanding, analytical reasoning, revision, and self-paced academic progression.
To access the courses, lessons, exercises, and free certification, users must install the Cursa app. Android users can install it from Google Play using Download for Android. iPhone users can install it from the App Store using Download for iOS / iPhone. Learn at your own pace, review challenging topics, practice academic skills, and expand your knowledge through convenient mobile study.
What school subjects can I study online?
You can study mathematics, science, humanities, and social sciences, including algebra, biology, history, literature, and economics.
Are online algebra courses suitable for beginners?
Yes. Beginner algebra courses typically cover variables, equations, inequalities, and basic problem-solving.
What is covered in an online geometry course?
Geometry courses commonly teach shapes, angles, proofs, area, volume, coordinate geometry, and transformations.
Can I learn calculus online?
Yes. Online calculus courses can cover limits, derivatives, integrals, and their practical applications.
Which science subjects are available online?
Common online science subjects include biology, chemistry, physics, geography, and statistics.
Can online courses help with history and literature assignments?
Yes. Courses can build skills in historical analysis, reading comprehension, literary interpretation, and essay writing.
What will I learn in a logical reasoning course?
You will learn how to identify arguments, assess evidence, recognize fallacies, and solve reasoning problems.
About
After completing the course you will have free access to the digital certificate of course completion.
How to get it for free: It is only possible to issue the certificate in our application, which can be downloaded from Google Play or App Store, so you can take the online course here and use the app only to issue the certificate. Being that you can also take the courses through the app if you wish.
In digital format: After completing the course and generating the certificate through the application, the image of the same will be generated in the photo gallery of your cell phone and will also be sent to your email.
Why the certificate is important: You can use it to improve your resume, to rise in careers or positions, to enrich your knowledge and among several other applications.
See more about the Certificate
Download the app! to have access to more than 4,000 Online Courses + Certificate, all free!
Download the app! 100% free courses.
Carry knowledge in your pocket.
Download the Cursa app.
There are hundreds of free courses available, with a free certificate of completion that is saved in your mobile image gallery.
Download the app to access the Course Completion Certificate for Free.
+ 10 million
students
Free and Valid
Certificate
60 thousand free
exercises
4.8/5 rating in
app stores
Free courses in
video and ebooks
What are people saying about free online courses of School Subjects
Curtis Ratcliff jr
can you get a job out of the certificate out of the world
CourseIntroductory Biology
Sam Siryon
This is a very wonderful online education platform. I recommend that every student be a member or participant of this unique platform.
CourseLogical Reasoning
Venkata sree Rama murty maddula
if u add the applications of it in classical and quantum computing very helpful
CourseAlgebraic Topology Course
JamesDavies
well taught and interesting. thank you sir.
CourseLogical Reasoning
Giovanna Sabrina Noriega Salinas
excellent! I'm speechless about the way the professor explains everything. I'm amazed
CoursePhilosophy and the Science of Human Nature
Safia Khalil Rahman
a very good video and use full full of education
CourseWorld Regional Geography
Reena Smita Ekka
It was fruitful and helpful in my teaching..
CourseIntroductory Sociology
Anas Aljofi
Thanks from the bottom of my heart ❤️. great job continuing your support for us.
CoursePrinciples of Microeconomics
karabo malcolm
really didn't miss any quotes and answers really helpful,I would listen to her voice All day long
CourseAlgebra
Dannylo Cardoso Maurício
Straight to the point. Concise, complete, structured.
CourseLogical Reasoning Mini Course