A child with special needs should be taught with the normal students at regular school. This is the whole concept of inclusive education, that all children get education together in their age appropriate class. Education by special teachers at special schools is not inclusive education.

Speaking clearly and using a lot of touches and feel materials will help the visually challenged children in understanding the concept or lesson which a teacher is trying to explain in the class.

Except D, all other options are advantages of inclusive education. Inclusive education provides better opportunity for learning, improve self-esteem, increases social opportunities, reduce fear and build friendship, understanding, and respect. It reduces the stigma associated with disabilities as familiarity and tolerance increase. The child without disabilities learns to value the contributions of all children, despite any disabling conditions.

The trial and error method is the method in which multiple attempts are made to reach a solution. It is a basic method of learning that essentially all organisms use to learn new behaviors. E.L. Thorndike was the chief exponent of the trial and error method.

The correct answer is A, Collaborative method. The collaborative method is based on Vygotsky's Zone of proximal development. Under the collaborative method, students work together and they rely on each other to accomplish a task as they wouldn't be able to complete it individually. The collaborative method is the key to critical thinking skills as students together brainstorm and finds out new ideas or generate new ideas based on old ideas.

The hierarchical organization of cognitive targets is related to Bloom’s taxonomy. It talks about lower level thinking skill at the lowest level and also about high and complex thinking which is at the top.

The above statement, "Ability is improvable" is a positive remark which motivates the child to learn again and not to be afraid of failure as it can be improved through practice.

To encourage students to become effective problem solvers, a teacher should encourage students to make intuitive guesses and then brainstorm on the same. When students think about different ideas to solve a problem, they become divergent thinkers.

When a person does something because he wants a reward or benefit for that particular behaviour or work, then this type of motivation is known as extrinsic motivation. In the given example students learn to get reward, so this is known as extrinsic motivation.

A teacher best role is to act as a facilitator in class, who guide students whenever they need him/her and create a healthy learning environment, make them a responsible and good citizen.