"Development is a sequential and slow process". Which among the following thinkers is associated with this thought?

Consider the following statement(s):

I. Intelligence, physical ability, and heredity factor are the internal factor of child development.

II. Appearance, physique, and hair-colour are the external factor of child development.

Which of the statement(s) given above is/are correct'? 

Consider the given statement(s) about child development:

I. Emphasis is on the process and the role of environment and experience.

II. It is the journey from conception to the rest of life.

Which of the statement(s) given above is/are correct?

Why is it important for teachers to know about the various stages of child development?

I. To produce a comfortable environment for the teaching and learning process.

II. To know and understand the problems faced by a child.

III. To establish effective communication with the child.

Which of the statement(s) given above is/are correct?

Consider the statement(s) about the principle of child development:

I. Development follows a sequence and all areas of development are important.

II. Development is an interaction of maturation and experience.

III. Development and learning both have an equal proceeding rate.

Which is an incorrect assumption?