To compare the points of view of Grandpa and Dad about the past first read the information about them, list the points of view of each person, and finally identify common points and differences through keywords.
A comparison implies identifying both the common points (similarities) and contrasting points (differences) of two or more elements.
Even though there is not enough information about who they are or their ideas about the past; here are some basic steps you can follow:
Note: This question is incomplete because there is no information about the perspectives of the people mentioned; due to this, I answered it based on general knowledge.
Learn more about comparison in: https://brainly.com/question/1516829