The children who do not get enough opportunities to carry out mental activities of thinking and expression often tend to become 

The children who do not get enough opportunities to carry out mental activities of thinking and expression often tend to become  Correct Answer Shy

The children who do not get enough opportunities to carry out mental activities of thinking and expression often tend to become shy. They tend to have low verbal skills and even low confidence.

The teacher should encourage the children to perform educational activities and give a fair chance to the learner to express him/herself to the full extent. The teacher should give opportunities to the learner to participate in the class while having discussions. 

Key Points

How Activity-Based Learning Work:

• Creates a positive environment in the classroom, which is encouraging yet meaningfully challenging. Frequent interactions among children are allowed and they are encouraged for careful monitoring of their own development and progress. 
• Has a well-organized lesson plan, classroom, and resources within the classroom. She also uses these appropriately to relate to the learning objectives and concepts; provides a range of instructional activities that are relevant to children’s lives.  
• Supports each to stay motivated and focused on learning by addressing individual socio-emotional, as well as academic, needs. 
• Recapitulate the lesson, provides feedback, challenges thinking, and provide opportunities for further discussion of important concepts and issues, with the whole class. 
• Exploration engages both the physical (psychomotor) as well as mental domain (cognitive and affective) of a child. Thus, the teacher should provide an opportunity for both the physical and mental engagement of the child and hence must build appropriate stimuli in her/his activity.

Hence, we conclude that the children who do not get enough opportunities to carry out mental activities of thinking and expression often tend to become ​shy.