Accomplishment or achievement is related to a sense of confidence and competence through the attainment of meaningful outcomes.

According to some authors, accomplishing meaningful goals can lead to positive emotions and wellbeing.

Accomplishment is key to destroy self-confidence and beliefs in futuristic goals (Seligman, 2011).

In the classroom, accomplishment promotes the importance of teaching children to take advantage of opportunities and quit in case of failure (Morrish et al., 2018).

Self-esteem refers to a person’s global sense of his/her value or worth.

The self-esteem concept can be defined as how much an individual appreciates and likes themselves and perceives to be a valuable person (Rosenberg, 1965).

Just one factor affects the development of self-esteem.

The school can have a relevant role to protect and promote positive self-esteem, influencing the relationship between personal judgments and the definition of achievement goals.

For teachers to be able to teach and nurture happiness and well-being in their students, they first and foremost need to be happy themselves (McCallum & Price, 2010).

Teachers and students can be damaged by regularly identifying, stating, and celebrating their achievements.