classes: lecturer. lecturers convey knowledge in a mechanical, ineffective way, creating a stressful, depressing learning space for students. curriculum. lecturers convey knowledge in a mechanical, ineffective way, creating a stressful, depressing learning space for students. facility. lecturers convey knowledge in a mechanical, ineffective way, creating a stressful, depressing learning space for students. general. lecturers convey knowledge in a mechanical, ineffective way, creating a stressful, depressing learning space for students.