Which of the following potential factors affecting teaching are related to instructional facilities and the learning environment?

Non-availability of reading materials, proactive moves in interaction and availability of smart classes relate to instructional facilities and the learning environment, so statements 2, 3 and 5 are the answer.

Absence of textbooks or reading materials is a direct facility constraint on the learning environment.

Proactive moves in the interactive process shape the classroom climate in which learning occurs.

Availability of smart classes is an instructional-facility factor that enriches the environment.

Praise and encouragement by the teacher (statement 1) is a motivational, teacher-related factor, not a facility.

Shortage of highly qualified teachers (statement 4) is a human-resource factor rather than a facility of the environment.