The rallies are a test of the strength of the student-led protest movement that has closed hundreds of French high schools since late September.
About 70,000 police and security officers, mobilized ahead of mass protests, will try to avert the arson and looting that shocked the country last weekend.
France is struggling to contain its biggest student protests in decades. What started as a demonstration in support of striking teachers at a suburban high school to the north of Paris has snowballed ...