The constructivist teaching-learning process is based on the belief that learning occurs as learners are actively involved in a process of meaning and knowledge construction as opposed to passively receiving information. Learners are the makers of meaning and knowledge.In this process teachers observe students actively, learning the students are assessed in different methods by the teachers, teachers never judge the students as weak, intelligent, etc.?A teacher should behave for the constructive teaching-learning process as-Students are active learners in the classroom, they take part in all the activities, programs, etc.The environment of the classroom should be based on the needs and interests of the students, Classrooms are child-centered instead of teacher-centered.Assessment of the student should be done using multiple ways.Students are the makers of the knowledge, they connect the concepts with their previous knowledge.Teachers should understand the feelings, environment, and culture of the students.Never judge the student by their marks, or denote them as weak students, low performers, etc.So by all these references, we can conclude that Given black stars to motivate non performing students is detrimental.