This document provides guidance for planning an integrated thematic social studies curriculum unit. It discusses including relevant history/social science and Common Core standards. Themes should be developmentally appropriate and hook students' interests. Lessons should integrate different subjects and develop understanding. Sample California themes are provided for grades 3-6. Guidance is given for selecting themes, developing essential understandings, involving students, and assessing learning through authentic final projects. Lessons should incorporate a variety of activities, intelligences, and depth of knowledge levels.