Here are some resources for lesson plans and social justice.
-More than 1,600 lessons for teachers. State standards included.
http://www.sacsc.ca/Elementary_Unit_and_Lesson_Plans.htm
– this site organizes content into units with social justice themes
http://www.tolerance.org/activities
-This site includes various lessons with social justice themes as well as links to additional resources related to the topic of each lesson
http://edsitement.neh.gov/lesson-plans
-Humanities lessons organized by subject, theme, and grade level
http://www.thinkfinity.org/?q=home
-Lesson plans filtered from various sources
http://www.lessonplanet.com/search?keywords=social+justice&media=lesson
-Lesson plans reviewed by teachers
www.kqued.org/w/mosaic/gaylesbian
-Lesson plans and resources