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.
Signaling principle.
The Signaling principle is represented by the visible author and sidebar for reinforcement of information. The visible author guides the viewer through the video information. The sidebar tab is highlighted when a relevant section of the video is reached and additional information can be accessed in the sidebar. The video tabs are highlighted for the section the participant/parent are currently viewing.
