You may be asking about Tinker v. Des Moines, 393 U.S. 503 (1969), the case that involved students suspended for protesting the Vietnam War by wearing black armbands to school. The Supreme Court held the school had violated their First Amendment right to expressive speech.
For more information, see Related Questions, below.
second amendment
Because people has been playin with them instead of listening.
Absolutely! Rosaries are a religious item, therefore banning them ANYWHERE IN THE UNITED STATES goes against the First Amendment.
The Supreme court ruled out the teaching of religion in public schools and segregation.
Much less since she died in 1995.
schools needed to desegregate
Banning slang in schools may limit students' expression and creativity. It's important for educators to teach when it is or isn't appropriate to use slang, rather than outright banning it. Encouraging language diversity can help students navigate different communication styles and contexts.
Political science is a four-year degree offered by a university. It is a popular major among students who plan to attend law school. While some schools call it a "political science" degree, other schools do not offer it as such, but similar coursework would render a history degree with a major in political science. Several schools offer graduate degrees in political science: http://grad-schools.usnews.rankingsandreviews.com/best-graduate-schools/top-humanities-schools/political-science-rankings
segregation in public schools was against the constitution
The Supreme Court ruling that caused schools to start integrating in the 1950s was Brown v. Board of Education (1954). This landmark decision declared that segregation in public schools was unconstitutional, effectively ending racial segregation in schools.
The two major schools are liberalism and conservatism.
The ACLU, American Civil Liberties Union, brought a law suit against Christianity being taught in public schools. The Supreme Court ruled that public schools can not teach religion, because it violated the Separation of Church and State. The New England Primer was phased from schools.