Get a working analog clock or watch. Observe the face of the clock and movements of the hands. Discuss what you observe.
Observations: An analog clock has three hands:
- Hour hand: Shortest, moves slowly
- Minute hand: Longer, moves faster
- Second hand: Thinnest, moves continuously
Time for one complete rotation:
- Hour hand: 12 hours
- Minute hand: 60 minutes (1 hour)
- Second hand: 60 seconds (1 minute)
Explanation
The chapter encourages students to observe an analog clock and understand how the hour and minute hands move. The hour hand is shorter and moves slowly, taking 12 hours for one complete rotation. The minute hand is longer and moves faster, taking 60 minutes for one complete rotation.
Solution Steps
Observe the three hands on an analog clock face.
Note the characteristics of each hand: hour hand is shortest and moves slowly, minute hand is longer and moves faster, second hand is thinnest and moves continuously.
Note the time each hand takes for one complete rotation: hour hand = 12 hours, minute hand = 60 minutes, second hand = 60 seconds.