Answer:
Inferiority
Step-by-step explanation:
Erik Erikson developed a theory about our psychosocial development, in which he stated that we go through different crisis along our lifespan. These crisis have the characteristic to have two opposite "values" and that we, as individuals, tend to resolve the crisis by adjusting ourselves more to one of the values. It is important to notice that Erikson crisis go through different stages.
One of the stages in this theory is call "industry vs. inferiority" and it takes place between the age of 6 and 12 years approximately, in other words, elementary school kids.
At this stage the child’s peer group will gain greater significance and will become a major source of the child’s self-esteem. The child now feels the need to win approval by demonstrating specific competencies that are valued by society and begin to develop a sense of pride in their accomplishments (industriousness).
Children feel specially industrious when they are encouraged and reinforced for their initiative and feel confident in their ability to achieve goals.
If they are not encouraged or this initiative is not reinforced they might develop a sense of inferiority. This sense of inferiority also appears when they discover the cannot master every thing in life.
Thus, when an elementary school child discovers that she cannot master every skill she attempts, this contributes to feelings of inferiority (since she is in the industry vs. inferiority stage).