Now, I know.
UEN is a consortium of public education partners, working to create educational opportunities for students and teachers. The organization provides access to professional development and has a handy website with lesson plans and many other useful resources. Because of the internet, you do not have to live in Utah to enjoy what UEN has to offer. Indeed, you can begin searching through lesson plans for K-12 on a variety of topics, right now.
For example, this terrific lesson plan by Mary Gould and Tom Szalay offers an introduction to the work of 20th Century documentary photographers, and is designed to help students discover how artists define and depict cultural identity.
Also: The photography of Henri Cartier-Bresson (French, 1908–2004)
Image above Henri Cartier-Bresson (French, 1908–2004)
Easter Sunday in Harlem, 1950s
The Metropolitan Museum of Art
© Henri Cartier-Bresson/Magnum