One of them is not a teaching technique  

Teaching techniques are methods or strategies employed by educators to facilitate learning in students. These techniques aim to engage students, promote understanding, and create a conducive learning environment.

 Key PointsDrilling, illustration, and dramatization are teaching techniques:

• Drilling: This involves repetitive practice or exercises to reinforce learning.
• Illustration: The use of visual aids, such as pictures or diagrams, to enhance understanding.
• Dramatization: Using role-playing or dramatic activities to engage students in learning and understanding concepts.

Thus, it is concluded that kindergarten is not a teaching technique.

Hint The term "kindergarten" is not a teaching technique rather, it refers to a specific educational approach or stage in a child's early education.