Hilarius

Hilarius Dwi Ari Setiawan, 11, a Kenalan sixth-grader, did not own a device, so his father, Noor Cahya Dwiwandaru, a farmer, took out a loan to buy an $85 phone.

“The children get stressed with this situation,” said Vincentia Orisa Ratih Prastiwi, Hilarius’s teacher.

To download Hilarius’s lessons, he stops work and rides his motorbike to the nearby village, where the signal is better.

One morning a week, Ms. Ratih, 27, meets Hilarius and four classmates for in-person lessons at one of their homes.

For example, Hilarius Gilges, who was mixed race, was a Communist and anti-Nazi agitator.