• In this April 30, 2015 photo, Leticia Fonseca, 16, left, and her twin sister, Sylvia Fonseca, right, work in the computer lab at Cuyama Valley High School after taking the new Common Core-aligned standardized tests in New Cuyama, Calif. The Cuyama Joint Unified School District is 60 miles from the nearest city and has Internet connections about one-tenth the minimum speed recommended for the modern U.S. classroom. Across the country, school districts in rural areas and other pockets with low bandwidth are confronting a difficult task of administering new Common Core-aligned standardized tests to students online. (AP Photo/Christine Armario)

    In this April 30, 2015 photo, Leticia Fonseca, 16, left, and her twin sister, Sylvia Fonseca, right, work in the computer lab at Cuyama Valley High School after taking the new Common Core-aligned standardized tests in New Cuyama, Calif. The Cuyama ... Joint Unified School District is 60 miles from the nearest city and has Internet connections about one-tenth the minimum speed recommended for the modern U.S. classroom. Across the country, school districts in rural areas and other pockets with low bandwidth are confronting a difficult task of administering new Common Core-aligned standardized tests to students online. (AP Photo/Christine Armario) (The Associated Press)

  • In this April 30, 2015 photo, students line up to take part in new Common Core-aligned standardized tests at the Cuyama Valley High School in New Cuyama, Calif. The Cuyama Joint Unified School District is 60 miles from the nearest city and has Internet connections about one-tenth the minimum speed recommended for the modern U.S. classroom. Across the country, school districts in rural areas and other pockets with low bandwidth are confronting a difficult task of administering new Common Core-aligned standardized tests to students online. (AP Photo/Christine Armario)

    In this April 30, 2015 photo, students line up to take part in new Common Core-aligned standardized tests at the Cuyama Valley High School in New Cuyama, Calif. The Cuyama Joint Unified School District is 60 miles from the nearest city and has ... Internet connections about one-tenth the minimum speed recommended for the modern U.S. classroom. Across the country, school districts in rural areas and other pockets with low bandwidth are confronting a difficult task of administering new Common Core-aligned standardized tests to students online. (AP Photo/Christine Armario) (The Associated Press)

  • In this April 30, 2015 photo, Brian Olivas, 17, looks at his smartphone between classes at the Cuyama Valley High School in New Cuyama, Calif. The Cuyama Joint Unified School District is 60 miles from the nearest city and has Internet connections about one-tenth the minimum speed recommended for the modern U.S. classroom. Across the country, school districts in rural areas and other pockets with low bandwidth are confronting a difficult task of administering new Common Core-aligned standardized tests to students online. (AP Photo/Christine Armario)

    In this April 30, 2015 photo, Brian Olivas, 17, looks at his smartphone between classes at the Cuyama Valley High School in New Cuyama, Calif. The Cuyama Joint Unified School District is 60 miles from the nearest city and has Internet connections ... about one-tenth the minimum speed recommended for the modern U.S. classroom. Across the country, school districts in rural areas and other pockets with low bandwidth are confronting a difficult task of administering new Common Core-aligned standardized tests to students online. (AP Photo/Christine Armario) (The Associated Press)

Online Common Core testing lays bare tech divide as slow Internet speeds plague rural schools

New standardized tests aligned to the Common Core standards have riled opposition. They've also revealed a tech divide in the nation's schools.

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Across the country, 63 percent of public schools don't have access to broadband speeds needed for digital learning. The problem is particularly acute in rural and low-income districts: Only 14 percent in those areas meet high-speed internet targets.

The new tests are designed to be taken online in order to test more skills.

Testing began in 29 states and the District of Columbia for 12 million students this year.

Federal and state grants are expected to boost connectivity in pockets with low bandwidth. In the meantime, some districts are resorting to alternatives like testing students in small groups or busing them to other schools.