Some 130 secondary schools and 10 universities are expected to boycott classes from today as officials and principals make a last-ditch effort to talk students out of it.
Student unions from University of Hong Kong, University of Science and Technology, Chinese University, City University, Polytechnic University, Education University, Baptist University, Lingnan University, Shue Yan University and Hang Seng University - will launch the two-week class boycott at 3.30pm today.
Meanwhile, the Hong Kong Students' Strike Alliance said students from 130 secondary schools will join the move either today or tomorrow.
The alliance canceled yesterday's assembly at Tamar Park due to safety concerns, but another assembly for secondary students will be held at Edinburgh Place today after a letter of no objection was granted by police.
Secondary school principals believe the scale of the boycott will be larger than the one in June.
"We are prepared for the scale and time of the class boycott this time to be larger and longer than the one in June," said Teddy Tang Chun-keung, head of the Hong Kong Association of the Heads of Secondary Schools.
He said schools do not support the action and will operate as usual. Tang also said students have to submit a letter from their parents to their schools.
Meanwhile, Chief Secretary Matthew Cheung Kin-chung urged students and teachers not to take part in the action. Writing on his blog yesterday, Cheung said schools are a place for learning and not a venue to express political views.
Financial Secretary Paul Chan Mo-po also warned there is zero tolerance for bullying in schools due to the background of students' parents.
Chan said any bullying that comes to light will be followed up and handled in a stringent manner.