Teacher Sofia Klada prepares to record lessons that are broadcast on public television, at an elementary school in Athens, Thursday, Nov. 19, 2020. Most other European countries have vowed to keep schools open, but the pandemic has hit Greece hard for the first time in recent weeks following a successful lockdown in the spring, overwhelming hospitals in parts of the country. State television is making and broadcasting lessons, while teachers sit in empty classrooms talking to remote students. Despite some problems, they say it keeps children in touch with their schools. (AP Photo/Thanassis Stavrakis)

Ioanna Kabouri principal, center, raises her hands as teachers Aphrodite Tzevelekou, left, and Sofia Galiotou perform live an online puppet show for students at a kindergarten in Athens, Thursday, Nov. 19, 2020. Most other European countries have vowed to keep schools open, but the pandemic has hit Greece hard for the first time in recent weeks following a successful lockdown in the spring, overwhelming hospitals in parts of the country. State television is making and broadcasting lessons, while teachers sit in empty classrooms talking to remote students. Despite some problems, they say it keeps children in touch with their schools. (AP Photo/Thanassis Stavrakis)

Teacher Katerina Papageorgiou gives an online lesson to C class students in an empty classroom of elementary school in Athens, Friday, Nov. 20, 2020. Most other European countries have vowed to keep schools open, but the pandemic has hit Greece hard for the first time in recent weeks following a successful lockdown in the spring, overwhelming hospitals in parts of the country. State television is making and broadcasting lessons, while teachers sit in empty classrooms talking to remote students. Despite some problems, they say it keeps children in touch with their schools. (AP Photo/Thanassis Stavrakis)

Teacher Rania Koukli records lessons that are broadcast on public television, at an elementary school in Athens, Wednesday, Nov. 18, 20202. Most other European countries have vowed to keep schools open, but the pandemic has hit Greece hard for the first time in recent weeks following a successful lockdown in the spring, overwhelming hospitals in parts of the country. State television is making and broadcasting lessons, while teachers sit in empty classrooms talking to remote students. Despite some problems, they say it keeps children in touch with their schools. (AP Photo/Thanassis Stavrakis)

A director watches the monitors as teacher Rania Koukli records lessons that are broadcast on public television, at an elementary school in Athens, Wednesday, Nov. 18, 2020. Most other European countries have vowed to keep schools open, but the pandemic has hit Greece hard for the first time in recent weeks following a successful lockdown in the spring, overwhelming hospitals in parts of the country. State television is making and broadcasting lessons, while teachers sit in empty classrooms talking to remote students. Despite some problems, they say it keeps children in touch with their schools. (AP Photo/Thanassis Stavrakis)

Teachers Aphrodite Tzevelekou, left, and Sofia Galiotou perform live an online puppet show for students at a kindergarten in Athens, Thursday, Nov. 19, 2020. Most other European countries have vowed to keep schools open, but the pandemic has hit Greece hard for the first time in recent weeks following a successful lockdown in the spring, overwhelming hospitals in parts of the country. State television is making and broadcasting lessons, while teachers sit in empty classrooms talking to remote students. Despite some problems, they say it keeps children in touch with their schools. (AP Photo/Thanassis Stavrakis)

A cameraman gives directions to teacher Rania Koukli as she prepares to record lessons that are broadcast on public television, at an elementary school in Athens, Wednesday, Nov. 18, 2020. Most other European countries have vowed to keep schools open, but the pandemic has hit Greece hard for the first time in recent weeks following a successful lockdown in the spring, overwhelming hospitals in parts of the country. State television is making and broadcasting lessons, while teachers sit in empty classrooms talking to remote students. Despite some problems, they say it keeps children in touch with their schools. (AP Photo/Thanassis Stavrakis)

Teacher Sofia Klada is seen on a screen as she records lessons that are broadcast on public television, at an elementary school in Athens, Thursday, Nov. 19, 2020. Most other European countries have vowed to keep schools open, but the pandemic has hit Greece hard for the first time in recent weeks following a successful lockdown in the spring, overwhelming hospitals in parts of the country. State television is making and broadcasting lessons, while teachers sit in empty classrooms talking to remote students. Despite some problems, they say it keeps children in touch with their schools. (AP Photo/Thanassis Stavrakis)

Teacher Aleka Michou gives an online lesson to C class students in an empty classroom of elementary school in Athens, Friday, Nov. 20, 2020. Most other European countries have vowed to keep schools open, but the pandemic has hit Greece hard for the first time in recent weeks following a successful lockdown in the spring, overwhelming hospitals in parts of the country. State television is making and broadcasting lessons, while teachers sit in empty classrooms talking to remote students. Despite some problems, they say it keeps children in touch with their schools. (AP Photo/Thanassis Stavrakis)

A kindergarten teacher reads a fairy story as Panos raising his hand with his twin sister Marina watch the online lesson in Athens, Thursday, Nov. 19, 2020. Most other European countries have vowed to keep schools open, but the pandemic has hit Greece hard for the first time in recent weeks following a successful lockdown in the spring, overwhelming hospitals in parts of the country. State television is making and broadcasting lessons, while teachers sit in empty classrooms talking to remote students. Despite some problems, they say it keeps children in touch with their schools. (AP Photo/Thanassis Stavrakis)

Eleni Vassilopoulou mother of Panos and Marina, places a book next to her children as they watch an online kindergarten lesson in Athens, Thursday, Nov. 19, 2020. Most other European countries have vowed to keep schools open, but the pandemic has hit Greece hard for the first time in recent weeks following a successful lockdown in the spring, overwhelming hospitals in parts of the country. State television is making and broadcasting lessons, while teachers sit in empty classrooms talking to remote students. Despite some problems, they say it keeps children in touch with their schools. (AP Photo/Thanassis Stavrakis)