Labor (1) Educational evaluation (1) Thought and thinking (1) Students (1) Reasoning (1) Perception (1) Preschool teachers (1) Methodology (1) Mathematics (1) Interviews (1) Id (Psychology) (1) Evaluation (1) Elementary school teachers (1) Content analysis (Communication) (1) Consciousness (1) Attachment and garnishment (1) Mental arithmetic (1) Women preschool teachers (1) Profesoras de enseñanza preescolar (1) Cálculo mental (1) Evaluación educativa (1) Profesoras de enseñanza primaria (1) Evaluación (1) Profesores de enseñanza primaria (1) Análisis de contenido (1) Profesores de enseñanza preescolar (1) Educación Primaria (1) Pensamiento (1) Estudiantes (1) Entrevistas (1)