Education, Curriculum - As enacted, requires each director of schools for an LEA and each director of a public charter school to annually ensure that students in grades K-12 enrolled in the LEA or public charter school observe the Fourth of July during the school year by receiving age- and grade-appropriate instruction on the founding of the United States, the separation of the original 13 colonies from Great Britain, the Declaration of Independence, the United States Constitution, and the fundamental rights and freedoms enjoyed by American citizens. - Amends TCA Title 49, Chapter 1; Title 49, Chapter 2; Title 49, Chapter 50 and Title 49, Chapter 6.

HB 1857 requires all Tennessee public schools and charter schools to designate one instructional day each school year for K-12 students to learn about the founding of the United States. The bill mandates age-appropriate lessons on the Fourth of July, the Declaration of Independence, the Constitution, and American civic principles - such as basic freedoms for younger grades, historical context for middle school, and analysis of founding documents for high school. Schools must ensure this teaching is nonpartisan, aligned with state academic standards, and focuses solely on historical facts and civic principles. The requirement would begin for the 2026-2027 school year.