What is the purpose of the flashback in Chapter Eight in the boy in the striped pajamas PLEASE HURRY !!

In Chapter 8, Bruno is thinking of the ones he misses from Berlin, and he thinks of his grandparents. The flashback in this chapter goes back to an argument that involved Bruno's Grandmother and father on Christmas Day.

Explanation:

faulty parallelism is a construction in which two or more parts of a sentence are equivalent in meaning but not grammatically similar in form.

the correct version of this faulty parallelism in the sentence is:

the hikers knew that the hike was six miles, that it usually required the entire day, and it would not be wise to start after 10: 00 a.m.

the problem is the last sentence, the first two have a basic subject+verb+object structure.

so, to give a proper balance to the structure, or better said, to give a parallel structure, we must write a basic s+v+o structure in all three sentences:

the hikers knew that the hike was six miles, that it usually required the entire day, and it would not be wise to start after 10: 00 a.m.

reasoning from several particular examples to establish a general principle