Elicit non-trivial dialogue from students. Guide students to reflection and analysis of the experience. Encourage students to share their perceptions and beliefs. Summarize and review similarities and differences.

Discuss. Conclusion: 60 min/1 hour.

Objective: Reflect on movement of the clock and analyze what happened.

Activity: Have a discussion about what happened. Why did the clock go back to 00 after "59"? Conclusion: 60 minutes in one hour.

Assessment: Student comments and participation in discussion.