Costa Rica (3) Science (3) Education (3) Educación (3) éducation (3) Labor (2) Teachers (2) Motivation (Psychology) (2) Learning, Psychology of (2) Attachment and garnishment (2) Academic achievement (2) Rendimiento académico (2) Factores (2) Ciencias (2) Motivación (2) Embargo (2) Profesores (2) Trabajo (2) Aprendizaje (2) sciences (2) Time (1) Teaching (1) Strategy (1) Quality of products (1) Physics (1) Perception (1) Measurement (1) Laboratories (1) Fortification (1) Examinations (1)