Trades Geometry — a free thirteen-lesson class from Global Sovereign University

Trades Geometry — practical math for the carpenter, plumber, electrician and framer: tape measure and roof pitch, pipe angles and conduit bends, and checking your work square

A Certifiable Class · Global Sovereign University

Trades Geometry

The practical math a carpenter, plumber, electrician, and framer actually use on the job. Thirteen lessons, free, no account, nothing to install. Every lesson ends in a number you either got right or did not.

Step one · Read

The material, broken into the separate ideas you will be asked to perform. Read it, or have it read to you.

Step two · Work

A drawing that redraws itself from your numbers, and an instruction to go put your hands on a real building.

Step three · Prove

New figures every attempt. Miss one and you are sent back to the exact paragraph that covers it, not just shown the answer.

Your progress is kept on your own device. Close the tab, go back to work, and pick it up where you left it. Nothing is transmitted and nobody is asked who you are.

The thirteen lessons

Ordered so each one stands on the one before it. All thirteen are open.

    The Certificate of Comprehension

    Working the lessons is practice, and practice does not earn a certificate. The certificate comes from a separate exam that is graded on our server, so no answer key ever reaches your browser and no score can be reported by the student.

    Thirty questions; you need 80% to pass. A pass prints a serial-numbered certificate with a link anyone can use to verify it. It says plainly that it records comprehension of the book, and that it is not a trade licence, an industry credential, or a qualification issued by any authority. That honesty is what makes it worth having.

    Sit the exam

    Trades Geometry — cover

    The book behind the class

    Trades Geometry was written by our founder, Dr. Gene A Constant, and donated to the Foundation. Published by Global Sovereign University Press. The class is free. The book is how the Foundation pays for it.

    Buy a copy — it funds a free seat

    Global Sovereign University is a 501(c)(3) nonprofit and book sales are its only income. A purchase is not a tax-deductible donation. As an Amazon Associate, GSU earns from qualifying purchases.

    Questions people ask

    Trades Geometry: frequently asked questions

    Is the Trades Geometry class really free?

    Yes. All thirteen lessons are free, with no account and nothing to install. Your progress is kept on your own device.

    How does the Trades Geometry class work?

    It has thirteen lessons, taught from the book. In each one you read the ideas, work a bench that answers back, then answer questions that change every attempt. Miss one and you are sent back to the exact idea it was testing.

    How do I earn the Trades Geometry certificate?

    Take the separate exam at globalsovereignuniversity.org/trades-geometry-exam. It has thirty questions drawn from all thirteen lessons, in a new order every attempt, graded on our server so no answer key ever reaches your browser. 80 percent earns Silver, 90 percent Gold and 97 percent Platinum, and every pass carries a serial number anyone can verify. It is free, and you may retake it.

    Is the Trades Geometry certificate a license?

    No. The certificate records that you understood the book and passed a test on it. It is not a trade license, an industry credential, or a qualification issued by any authority.

    Do I need the book?

    No. Every lesson is taught on the page. The book it is taught from, Trades Geometry, goes deeper, and buying a copy is how the Foundation pays for the free class.

    Do I have to finish the lessons before taking the exam?

    No. The lessons are practice and the exam is the proof. They are separate, so you can sit the exam whenever you are ready.

    Accreditation notice: Global Sovereign University is not an accredited institution and does not grant degrees, academic credit, licenses, or industry credentials. Learners who pass GSU's online exams earn GSU certificates of comprehension.