Terms of use
Last updated: August 18, 2026
The short version
Use the lessons freely, including in your classroom. Print them, assign them, work through them. Do not republish the content as your own or resell it. We work hard to be accurate but we are not a substitute for your teacher or your textbook, and we make no guarantee of correctness.
Using this site
MathLessons.com is free to read. No account is required and nothing is placed behind a paywall.
Classroom and personal use
You may, without asking us:
- read, print and photocopy lessons for your own study;
- print and distribute lessons and practice sheets to your students;
- link to any page on this site from a class page, worksheet or LMS;
- display lessons on a projector or classroom screen.
Printed pages carry the site address. Please leave it in place so students can find the lesson again.
What you may not do
- republish substantial portions of the content on another site, with or without attribution;
- sell, license or bundle the content into a paid product;
- scrape the site at a volume that interferes with it, or copy it wholesale to train or populate another service;
- remove or obscure attribution on printed material.
If you want to do something not covered here, ask at[email protected]. We are generally happy to say yes to teachers and schools.
Accuracy, and what to do about errors
Every lesson is reviewed for mathematical accuracy by a second person before it is published, and the reviewer is named at the foot of the page. Even so, errors get through.
The content is provided for educational purposes and without any warranty of correctness. Do not rely on it as the sole basis for graded work, a formal assessment, or any decision with a consequence attached. Where this site and your teacher, syllabus or textbook disagree, follow your teacher.
If you find a mistake, please tell us at[email protected]. Corrections to the mathematics are treated as urgent, and the page's "last updated" date will change when one is made.
Standards content
Standard text shown on this site is reproduced from the Common Core State Standards for Mathematics, © Copyright 2010 National Governors Association Center for Best Practices and Council of Chief State School Officers. All rights reserved. We are not affiliated with, endorsed by, or acting on behalf of either organisation, and alignment of a lesson to a standard is our own editorial judgement.
Advertising
This site is funded by advertising. Advertisements are supplied by a third party and are not endorsements by us. How advertising affects your data is explained in our privacy policy.
Links to other sites
Lessons link to outside resources where they are useful. We do not control those sites and are not responsible for their content or their policies.
Availability
The site is provided as it is, without any promise that it will always be available or free of interruption. We may add, change or remove content at any time.
Limitation of liability
To the fullest extent permitted by law, we are not liable for any loss arising from your use of this site or from reliance on its content, including any consequence of an error in a lesson.
Changes to these terms
If these terms change, the date at the top of this page will be updated. Continuing to use the site after a change means you accept the revised terms.
Contact
Questions about these terms, permission requests, and error reports all go to [email protected].