Teachers can tailor this learning activity to three difficulty levels to meet students’ needs.

• Beginner learners (6-7 years old): the emphasis is on asking simple questions and providing strong guidance from the teacher. 
• Advanced learners (8-9 years old): they are given more freedom to investigate, collaborate in groups, and experiment with various materials. 
• Expert learners (9–10 years old): they work more independently, formulate complex questions, and critically analyse their findings.

Throughout this progression, the teacher gradually reduces direct instruction, allowing for increased independence, reflection, and creativity. This approach ensures that open inquiry evolves alongside the child’s development.