Constitution Week from September 17 to 23 is the commemoration of the drafting of America's most important document. September 17 is Constitution Day, the day that constitution was ratified and became the supreme law of the land in 1787. Also, September 17 is citizenship day. It is a day for all Americans—kids included—to reflect on the rights and responsibilities of citizenship and the protections Americans have in the Constitution.

California Department of Education - Information and resources about Constitution Day:
https://www.cde.ca.gov/pd/ca/hs/hssconstitutionday.asp
https://www.cde.ca.gov/ci/hs/im/constitutionday.asp

California Rights Foundation - Grade level lessons for Constitution Day, resources for parents and families, as well as ideas for civic engagement on Constitution Day:
http://www.cms-ca.org/constitution_day.htm

Constitution Day - Curriculum Materials for Constitution Day/Week
https://www.crf-usa.org/curriculum/ 

U.S. Department of Education-  Constitution Day Information and Resources:
https://www2.ed.gov/policy/fund/guid/constitutionday.html

California History Social Science Framework - Each grade level has suggestions for ways to engage students in learning more about citizenship and civic engagement.  Appendix H specifically addresses the importance of Civics Engagement.
https://www.cde.ca.gov/ci/hs/cf/hssframework.asp

Common Core State Standards
Educational standards describe what students should know and be able to do in each subject in each grade. In California, the State Board of Education decides on the standards for all students, from kindergarten through high school.
https://www.cde.ca.gov/re/cc/ 

The National Constitution Center - Resources and information with an interactive Constitution 
https://constitutioncenter.org/constitution-day