3 ms·
Perhaps it is a number based on the time that would be required for teachers to perfectly track attendance. But of course they don't in practice!
by TazeTSchnitzel 7y ago
Perhaps it is a number based on the time that would be required for teachers to perfectly track attendance. But of course they don't in practice!
- havkom 7y agoMy fault. 17 280 h per year was the calculated savings