Freetospeak Gateways to Better Education, a "national organization dedicated to helping public schools teach Judeo-Christian history, thought, and values" is sponsoring the National Free to Speak Campaign, which aims to "help schools become safe places for students to express their religious beliefs."

The
U.S. Department of Education issued guidelines on freedom of religious
expression in public schools twice during Clinton administration (1995
and 1998) and once under the Bush administration (2003). This
is a bipartisan issue. The guidelines were sent to every school
district, but they didnít get to classroom teachers, parents, and
students.

Is this really necessary?  You will think so if you read news articles like Religion and public schools: An important civics lesson this fall, which documents common violation of free speech by (liberal) school teachers and administrators.  

The Alliance Defense Fund has produced a nice Students' Rights Pamphlet (PDF) of the current US laws covering such free speech in schools (reproduced below). 

This IS a bipartisan issue – at least, for people of faith, confidence in free speech, and/or a non-secularist understanding of separation of church and state (separation of powers, but not ideas).  Some related articles:

ADA LIST OF STUDENTS' RIGHTS OF FREEDOM OF RELIGIOUS SPEECH

1. Students have the right to pray, evangelize, read Scripture, distribute literature, and invite  fellow students to participate so long as it is voluntary; it is not disruptive or coercive; and it occurs during noninstructional time.

a. Schools may only prohibit student expression if there is specific evidence that the expression materially and substantially interferes with the requirements of appropriate discipline in the operation of the school or interferes with the rights of others.

b. All student expression is subject to reasonable time, place, and manner restrictions imposed by the school. These restrictions must be content neutral, narrowly tailored to serve a signifi cant government interest, and leave open ample alternative channels of communication.

2. Students have the right to express their religious views during class discussions or as a part of an assignment so long as the expression is relevant to the subject under consideration and otherwise meets the requirements of the assignment.

3. Students may lawfully study the Bible as a part of a secular program of education if the school should choose to use or allow use of the Bible as a part of its curriculum.

4. Students may lawfully study and perform religious songs as a part of advancing the studentsí objective knowledge of societyís cultural and religious heritage, or furthering the study of music, if the school should choose to use religious songs as a part of the curriculum.

5. Secondary school students may form religious clubs if the school receives federal funds and allows non-curriculum related clubs to meet during noninstructional time.

a. Religious clubs must be student-ledóa nonstudent cannot lead the club. Regular attendance by an outside adult may be prohibited in order to avoid the appearance of the club being initiated or directed by a nonstudent.

b. Teachers may be present at religious club meetings as monitors, but they may not participate in club activities.

c. While the Federal Equal Access Act only applies to secondary school students (which is defined by the law of each state), a junior high and high school studentís right to initiate and attend religious clubs, and to receive equal access to all club benefi ts has also been recognized as being protected by the First Amendment.

6. Religious clubs must be given full access to all school facilities, resources, and equipment that are used by secular student clubs, including, but not limited to, announcements on bulletin boards and the schoolís public address system, access to club funding and yearbook.

7. Students may wear religious attire required by their religion to the extent that other like articles of dress are permitted.

8. Students may wear clothing or jewelry displaying religious messages to the same extent that other messages are permitted.

9. Subject to applicable state laws, students may be able to attend off-campus religious instruction provided that schools do not encourage or discourage participation or penalize those who do not attend.

10. Subject to applicable state laws, students may be able to be excused from lessons that are objectionable to the student or the studentís parents on religious or other conscientious grounds. Students also have a right not to be required to say or do something that violates their religious beliefs.

11. Subject to applicable state laws, students may be able to obtain an excused absence for the observance of religious holidays.

NOTE:  the ADF also publishes a more detailed Student Rights Handbook (PDF)