FIGURE 2.
Example screenshots of high scoring educational materials (source number: 57 and 23) and low scoring educational materials (source number: 22 and 53)
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.