Constructivism

Constructivism is an approach to learning that holds that people actively construct or make their own knowledge and that reality is determined by the experiences of the learner. Constructivism believes in personal construction of meaning by the learner through experience, and that meaning is influenced by the interaction of prior knowledge and new events. 
I would like to mention some of the principles of constructivism.

1. Knowledge is constructed, rather than innate, or passively absorbed
2. Learning is an active process
3. All knowledge is socially constructed
4. All knowledge is personal
5. Learning exists in the mind

So what is the role of the teacher in a classroom?

The primary responsibility of the teacher is to create a collaborative problem-solving environment where studenta become active participants in their learning. A teacher acts as a facilitator of learning rather than an instructor. The teacher makes sure she understands the students preexisting conception and guides  the activity to address them and then build on them.

What are the features of a constructivist classroom?

1. Knowledge will be shared between teachers and students.
2. Teachers and students will share authority.
3. The teacher's role is one of facilitator or guide.