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Free math certification
Free math certificationGeometry Certification
Earn a free Geometry certification by working every problem yourself - naming and measuring angles, the pairs a straight line and a full turn create, vertical angles, parallel lines cut by a transversal and the angle facts of a triangle - each drawn as a figure and solved on a board that only allows legal moves. The Angles section issues its own verifiable certificate.
Inside the Geometry course
Each section below issues its own certificate when completed. Browse the full course to see every lesson and challenge.
01
AnglesAngles from the ground up: naming and measuring them, the pairs a straight line and a full turn create, vertical angles, parallel lines cut by a transversal, and the angle facts every triangle obeys.
How it works
Three steps from your first equation to a certificate you can show off.
- 01
Pick a course
Choose any math course and start with the first lesson - no card, no signup wall.
- 02
Solve through the section
Each section is a series of lessons and challenges where you work every problem step by step on the math board, which only accepts legal moves.
- 03
Earn & share your certificate
Finish the section to unlock a verifiable certificate with a unique ID. Add it to LinkedIn, a school application or your CV in one click.
What you will prove
Each Geometry certificate certifies that you solved the problems yourself, step by step - not that you watched a lecture.
Not sure yet?
Solve one before you commit
Open the equation solver and watch a problem worked step by step, every move named the way the course names it. See the method before you start earning the certificate.
OPEN THE EQUATION SOLVEROther math certifications
See all →Frequently asked questions
How do I get a math certificate on Coddy?
Pick any math course and complete a section - finish every lesson and challenge in it. The certificate is generated automatically the moment the last lesson is done and added to your account.
Is a math certificate from Coddy accredited?
No. Coddy is not a school and does not award academic credit. What the certificate records is that you solved every problem in a section yourself, on a board that checks each step - a concrete, verifiable record of the work, which is what a tutor, a teacher or a portfolio can use it for.
Are Coddy's math certificates free?
Yes. Every certificate is free to earn, view, download and share. There is no paywall on any math lesson and no subscription needed for the certificate.
How does someone verify a math certificate?
Every certificate has a unique ID and a public URL. Anyone can paste the ID into the verifier on this page or open the URL to confirm it is genuine and see which section it was issued for.
Can I put a math certificate on LinkedIn?
Yes - the certificate page has a one-click "Add to LinkedIn" button, a downloadable PDF and a public link. Most learners add them under Licenses & Certifications.
How many math certificates can I earn?
One per section of every math course - five for algebra today: fundamentals, inequalities and absolute value, graphs and systems, exponents and polynomials, factoring and quadratics - with more courses as the space grows.
Do I need to finish the whole course to get a certificate?
No. Each section issues its own certificate as soon as you finish it, so your first one arrives after the first section, not at the end of the course.
What if I lose my certificate ID?
Sign in and open this page: every certificate you have earned is listed under "My certifications" with a link and a download button.
