There are a ton of resources at The Best Resources For Learning About Juneteenth, including many lesson plans.
Especially at this time of the year, I doubt if any teachers really have the energy to create something from scratch, so here are a few more resources offering additional ready-to-use classroom lessons:
Lesson Plan: History of Juneteenth and why it’s set to become a national holiday is from The PBS NewsHour.
Juneteenth Activities for the Classroom is from HMH.
Teaching About Juneteenth is from Educators 4 Social Change.
Celebrate Juneteenth is from Teach For America.
NYC's Social Studies and @Civics_For_All team has created a Juneteenth Resource Guide. The guide is divided into three sections and provides links, descriptions, and student-facing questions to support lesson plan development. Access it here: https://t.co/8K9mY3z3DL
— Joe Schmidt (@HSGlobalHistory) June 18, 2021
— Colorín Colorado (@ColorinColorado) June 17, 2021