Aligned to your state
Which edition do I need?
Texas has its own TEA-adopted TEKS edition. Everywhere else, our national curriculum is built on the NGSS, with a standards crosswalk that maps every investigation to your state's codes. Pick your state to get the right edition.
Find materials for your stateSelect a state to see the right edition
NGSS-aligned edition
NGSS and NGSS-based states
Three-dimensional investigations, Phenomenon-Driven Tasks, and engineering challenges built on the Next Generation Science Standards, with crosswalks to states that use NGSS-based standards. K-12.
Browse NGSS-aligned curriculum → Texas TEKS editionTexas Essential Knowledge & Skills
TEA-adopted Grades 3-5 plus the full TEKS-aligned lineup for SEP, RTC, and DC, built specifically for Texas.
Browse TEKS curriculum →What is a crosswalk? A crosswalk lines up each ADI investigation, Phenomenon-Driven Task (PDT), and engineering challenge with the matching code in your state's standards, so you can see the alignment for yourself. See available crosswalks or request yours.