Almost 30,000 students attend classes in the Chula Vista Elementary School District in California. The elementary school district is the largest in the state. It operates 45 schools between the city of San Diego and the United States border with Mexico. The majority of students are between five and 12 years old. The district is also one of California's most diverse. Sixty-eight percent of students are Hispanic and 35 percent are learning English. Some of the students come from the Mexican city of Tijuana and speak Spanish at home. The English language ability among these students differs widely. The Salt Creek Elementary School works with students in the town of Chula Vista, about 15 kilometers north of the Mexican border. The boys and girls there share their cultural traditions and learn from one another, including the languages spoken by other students.