Most classroom material about science is written either for specialists or for nobody in particular. It assumes equipment a school may not have, background a student may not have, or preparation time a teacher certainly does not have.
We start from those constraints. Every worksheet prints in black and white, works without a device, and can be taught by someone who is not a subject specialist. Each packet names its standards, its running time, and what it assumes students already know.
One hundred and forty-four weeks of classroom-ready chemistry across Grades 9 to 12. Every week ships a student worksheet, a competition problem set, and a curiosity reading. Grades 9 and 10 released 26 July 2026, Grades 11 and 12 released 28 July 2026, both at version 1.0.0.
Core
The main packet. Quick checks, guided application, and extended reasoning, with answer space built in. Prints in black and white, roughly 95 minutes of work.
Competition
Harder problems for students who want them, written in the style of olympiad and contest questions but tied to the same week's topic.
Curiosity
A short read that puts the week's chemistry somewhere real. No prerequisites, no problem set, meant for students who ask why this matters.
Every packet carries its NGSS standards, science practices, and crosscutting concepts in machine-readable metadata.
Text-only alternatives for visuals, sentence frames, prefilled data tables, and printed dataset alternatives where a lab is not possible.
Numeric, conceptual, safety, accessibility, and render audits, with checksums recorded for every file in the release.
