Answer:
Chunking
Explanation:
In Cognitive Psychology ( study of mental process like memory, attention, perception etc), Chunking is a method of memorizing in which an information is broken down and then grouped together. Chunking facilitates easy retrieval of information.
Vikranth could easily remember due to the grouped categorization of the information rather than individually. He breaks the 20 letters and groups it into seven. It is a memory mechanism to improve the perception level and to store the information easily.
Formal principle because formal means "used to be" so the ex principal would be the FORMER principal. he's not principal.
Answer: He argued that observation and experimentation are the most important tools for understanding the natural world. ... It caused people to take a new, logical approach to scientific discovery based on experimentation and observation.