Which of the following characteristics is essential for a constructivist learning environment?

Which of the following strategies is/are helpful to create an effective learning environment? I. Encouraging rote memorization of facts. II. Focusing on the development of critical thinking skills. III. Ensuring passive reception of information. IV. Engaging students in problem-solving activities.

In a socio-constructivist classroom, the teacher is ______ and the tables and desks are ______ to facilitate group work.