A man giving a lecture to a group of women without partition
Question

                Alsalmu alikum
      If a man (Imam, Sheikh, Student of Knowledge, etc) is lecturing a group of women, is
      it permissible for them all to sit in the same room with no partition between the man and
      the women, or should the man teach
      from behind a screen?
Praise be to Allah.It is allowed for the man to lecture to the women in the
      same room
      without a partition if all of the following conditions are met:
      1) The women are wearing complete Hijjab (cover includes face, hands,
      feet, etc..).
      2) The women don't speak in a tempting voice.
      3) If the instructor and the women are not being attracted to each
      other and feel no (fitnah) desire.
      It is better to have a partition between them because it is more pious solution for both
      the man and the women Plus,
the women would be able to dress in their comfortable way without Hijjab.
      And Allah knows best