About Legend Standards

Why we built this reference and how it connects to legend.org.

Teachers shouldn’t have to dig through PDFs and dead state department links to find a learning standard. But that’s how it usually works. The codes change and the documents move every few years.

Teachers kept asking us where to find the canonical version of a standard, and what it really meant in practice. We answered enough times that it made sense to publish the answers.

So we built a reference. Every U.S. state’s adopted learning standards, organized by grade and subject, with the official source linked on every page.

What’s on this site

A free, public reference for K-12 learning standards in the United States.

You can look up the standards your state has adopted, and read the original framework standards like Common Core and NGSS. Each one links back to the official state document. We refresh the content when a state changes its frameworks.

No account required. Free for any teacher to use.

How it connects to legend.org

The same team that builds Legend maintains this site.

Legend is the tool teachers use to turn student work into rubric-aligned feedback. Standards sit at the top of that stack. A rubric is a translation of a standard into something gradable. A comment is a translation of a rubric back into something a student can act on.

If the standard is unclear, the rubric drifts. The feedback that follows drifts with it. So we made the standards easier to find and easier to read. This site stays free because it should be.

If something here looks out of date, tell us.