At primary level a teacher generally motivates learners for colouring and drawing as it helps in: 

Drawing and coloring are creative activities that involve using various artistic techniques to create visual representations on paper or other surfaces.Key Points 

• Drawing and colouring primarily improves fine motor skills which refer to the coordination of small muscle movements, such as those in the hands and fingers, often in coordination with the eyes.
• When children draw, they use and develop these fine motor skills, which are essential for tasks such as writing, buttoning clothing, and manipulating small objects.
• So, at primary level a teacher generally motivates learners for drawing and colouring as it strengthens their grip and control on pencils which ultimately leads to the development of fine motor skills.

​Hence, at primary level a teacher generally motivates learners for drawing and colouring as it helps in developing fine motor skills.