Resource License
Everything on this site is free for teachers and students. Here's what that means in practice - and what I ask in return.
The short version
Use any resource in your classroom - worksheets, guides, slides, practice problems
Share resources with students, parents, and other teachers
Copy individual questions or sections for quizzes, handouts, and assignments
Adapt or modify resources to fit your class - as long as you credit the original
Post resources on your school's LMS (Google Classroom, Canvas, etc.)
Sell these resources or include them in paid products or courses
Remove or obscure the attribution line on full documents
Republish resources as your own without crediting the original
Use resources for commercial tutoring businesses or test prep companies
Attribution
Attribution doesn't have to be complicated. Here's what works depending on how you're using the resource:
The legal version
All resources on charlesdwang.com are published under the Creative Commons Attribution–NonCommercial 4.0 International License (CC BY-NC 4.0). It's a well-established, internationally recognized license used by educators worldwide.
You must give appropriate credit to Charles D. Wang and link to charlesdwang.com when sharing or adapting these materials.
You may not use these materials for commercial purposes — including selling them, including them in paid courses, or using them in a for-profit tutoring business.
What's on every document
Every resource on this site includes this line in the document footer:
Please don't remove this line from full documents. If you're copying a single question or section, see the attribution guidance above.
Questions?
If you're a teacher, school, or organization with a specific use case you're not sure about - please reach out. I'm happy to talk through it.
Get in touch →