Elementary school children define themselves principally by their accomplishments in school and their relationships with their peers and adults. True False

The above statement is true.

Explanation:

Elementary school children judge themselves and others based on the performance in school. We observe that elementary school children tend to like those children who are goon in studies as compared to the children who get fewer marks in tests and exams.

Children of the elementary school love their teachers and parents and are happy with themselves when their teachers or parents praise them.

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.