California Gov. Gavin Newsom nudges school districts to restrict student cellphone use FILE - California Gov. Gavin Newsom speaks at the opening ceremony for Panda Ridge, the new exhibit at the San Diego Zoo, Aug. 8, 2024, in San Diego. (AP Photo/Derrick Tuskan, File)
Student Keiran George uses her cellphone as she steps outside the Ramon C. Cortines School of Visual and Performing Arts High School in downtown Los Angeles on Tuesday, Aug. 13, 2024. (AP Photo/Damian Dovarganes)
FILE - California First Partner Jennifer Siebel Newsom, center, greets a student while she stands with state Superintendent of Public Instruction Tony Thurmond and Gov. (Paul Kitagaki Jr./The Sacramento Bee via AP, Pool, File)
South Carolina State Board of Education Chairman David O'Shields proposed that the board delay for several weeks approving guidelines banning cellphone use by students during instructional time at a meeting on Tuesday August, 13, 2024, in West Columbia, S.C. (AP Photo/Jeffrey Collins)
South Carolina Education Department Deputy Superintendent Matthew Ferguson speaks about guidelines banning cellphone use by students during instructional time at a meeting, Tuesday Aug., 13, 2024, in West Columbia, S.C. (AP Photo/Jeffrey Collins)
The headquarters for the South Carolina Department of Education is seen on Tuesday, Aug. 13, 2024, in West Columbia, S.C. (AP Photo/Jeffrey Collins)
Students use their cellphones as they leave for the day the Ramon C. Cortines School of Visual and Performing Arts High School in downtown Los Angeles on Tuesday, Aug. 13, 2024. (AP Photo/Damian Dovarganes)
Students leave for the day the Ramon C. Cortines School of Visual and Performing Arts High School in downtown Los Angeles on Tuesday, Aug. 13, 2024. (AP Photo/Damian Dovarganes)
Student Maybelline Herrera uses her cellphone as she steps outside the Ramon C. Cortines School of Visual and Performing Arts High School in downtown Los Angeles on Tuesday, Aug. 13, 2024. (AP Photo/Damian Dovarganes)
Student April Yamilet, 17, uses her cellphone as she steps outside the Ramon C. Cortines School of Visual and Performing Arts High School in downtown Los Angeles on Tuesday, Aug. 13, 2024. (AP Photo/Damian Dovarganes)
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FILE - California Gov. Gavin Newsom speaks at the opening ceremony for Panda Ridge, the new exhibit at the San Diego Zoo, Aug. 8, 2024, in San Diego. (AP Photo/Derrick Tuskan, File)