So many instructors, as students, attended the traditional college model with lecture as the main focus - it is only natural then that most try to recreate that setting in their classroom. However, especially when dealing with non-traditional students, that lecture format does not work well. You still need to give the students information but lecturing for extended periods just wont cut it any longer. Use pairs, small groups and other acitivities to get the students invoved in their own learning.
