LOS ANGELES (AP) — The Los Angeles Unified School District — which has begun giving iPads to students — may have to spend millions to supply students with keyboards.

The Los Angeles Times says wireless keyboards are recommended for students when they take new state tests. The district didn't include that cost in the estimated $1 billion budget to provide all 650,000 students with iPads over the next year and put wireless service in schools.

Providing all students with keyboards could run an additional $38 million. However, it's not clear yet whether the district plans to supply all students with keyboards or just older students who might need them for essay questions.

The district is using school construction bonds to buy the iPads. The first ones were distributed at two schools last week.