About chemlessons.xyz

Hi — I'm a high school chemistry teacher, and this site is the resource I wish I'd had my first year in the classroom: a complete, coherent, classroom-tested year of chemistry that another teacher can pick up and actually use.

Everything here was built for and refined by real students. The interactive notebook pages have been folded, glued, and highlighted; the labs have been run with real (occasionally questionable) school equipment; the slides have survived first period. It's shared in the spirit of the teachers who shared with me.

You may also know my other project, docmayscience.com, where more of my science teaching work lives.

The apps are the other half of the project. I build the software my own classroom runs on — most notably Chem Cash, a points-based classroom economy where students earn for their work and spend it in a class store, a stock market, and chemistry games. This curriculum will always be free; Chem Cash is simply how my students and I make it a game.

The philosophy

• Free means free. No accounts, no upsells, no "premium tier." Assessments just need a quick verification so the answer keys don't get posted publicly — using them with your own students is exactly the point.
• Editable beats perfect. Resources are shared as copyable Google files so you can adapt them to your students, standards, and schedule.
• Coherence matters. This isn't a pile of worksheets — it's one sequenced year where each unit builds on the last.

License & sharing

Materials on this site are shared under a Creative Commons BY-NC-SA 4.0 license: use them, adapt them, and share them with other teachers — with attribution, not for sale, and passed along under the same terms. If you're an ed-tech company or publisher, that means this isn't for you to bundle and resell.

Get in touch

Found a typo in a problem set? Have a better mnemonic for solubility rules? Want to contribute a resource? Email — I read everything, usually while my coffee goes cold.