Where's My Hour?
Math
30 Min
activityExplore the mystery of the 'missing' or 'extra' hour that appears and disappears from our clocks twice a year. This Spark helps families understand how Daylight Saving Time works and why we agree to change our clocks.
The lesson goal is learners will discover how clocks adjust for Daylight Saving Time each spring and fall. They will understand that a day always contains 24 hours despite these changes, realizing that time is a shared human agreement rather than something lost or found.
What You Need
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Learning Guide
Step-by-step guidance. No preparation required.
- 1
What Time Is It?5 Min
- Point to a clock and ask what time it shows. Discuss its use.
- Move on when Child notes the current time and expresses initial curiosity about why clocks change.
- 2
Changing the Clocks8 Min
- Explain 'spring forward.' If using an analog clock, move hands forward one hour.
- Ask how 'springing forward' makes the morning feel and what happens to the 'missing' hour.
- Explain 'fall back.' If using an analog clock, move hands back one hour.
- Ask how 'falling back' makes the morning feel and what happens to the 'extra' hour.
- Move on when Child understands the concept of moving clocks forward and backward by one hour and can describe the immediate effect on a timeline.
Photo by Miguel Á. Padriñán on Pexels - 3
The Missing Hour Mystery6 Min
- Ask the child for their theory on where the hour goes or comes from.
- Explain Daylight Saving Time: an agreement to rename hours, not create or destroy time.
- Ask why people might agree to shift the clock labels (more evening daylight).
- Move on when Child can explain that the hour isn't physically lost or gained, but that its label changes by agreement.
Photo by Tima Miroshnichenko on Pexels - 4
Timeline of a Day9 Min
- Draw a 24-hour timeline, marking key times like morning, afternoon, night.
- Draw a 'spring forward' timeline, showing the skipped hour but maintaining 24 hours.
- Discuss that the day's length doesn't change, only the labels shift.
- Draw a 'fall back' timeline, showing the repeated hour and total 24 hours.
- Move on when Child has drawn timelines illustrating how the clock labels shift during DST transitions without changing the 24-hour length of the day.
Photo by Startup Stock Photos on Pexels - 5
Our Time Agreement2 Min
- Ask what they discovered about the missing/extra hour and what surprised them.
- Move on when Child shares one key takeaway, such as 'the hour isn't lost, we just call it something different' or 'time is something we all agree on'.
Photo by Maurício Mascaro on Pexels
What happens to the missing hour?
Math30 MinactivityExplore the mystery of the 'missing' or 'extra' hour that appears and disappears from our clocks twice a year. This Spark helps families understand how Daylight Saving Time works and why we agree to change our clocks.
Our Goal is learners will discover how clocks adjust for Daylight Saving Time each spring and fall. They will understand that a day always contains 24 hours despite these changes, realizing that time is a shared human agreement rather than something lost or found.
What You Need
Missing something? In the app, Mai suggests swap ideas.
Learning Guide
Step-by-step guidance. No preparation required.
- 1
What Time Is It?5 Min
- Point to a clock and ask what time it shows. Discuss its use.
- Move on when Child notes the current time and expresses initial curiosity about why clocks change.
- 2
Changing the Clocks8 Min
- Explain 'spring forward.' If using an analog clock, move hands forward one hour.
- Ask how 'springing forward' makes the morning feel and what happens to the 'missing' hour.
- Explain 'fall back.' If using an analog clock, move hands back one hour.
- Ask how 'falling back' makes the morning feel and what happens to the 'extra' hour.
- Move on when Child understands the concept of moving clocks forward and backward by one hour and can describe the immediate effect on a timeline.
Photo by Miguel Á. Padriñán on Pexels - 3
The Missing Hour Mystery6 Min
- Ask the child for their theory on where the hour goes or comes from.
- Explain Daylight Saving Time: an agreement to rename hours, not create or destroy time.
- Ask why people might agree to shift the clock labels (more evening daylight).
- Move on when Child can explain that the hour isn't physically lost or gained, but that its label changes by agreement.
Photo by Tima Miroshnichenko on Pexels - 4
Timeline of a Day9 Min
- Draw a 24-hour timeline, marking key times like morning, afternoon, night.
- Draw a 'spring forward' timeline, showing the skipped hour but maintaining 24 hours.
- Discuss that the day's length doesn't change, only the labels shift.
- Draw a 'fall back' timeline, showing the repeated hour and total 24 hours.
- Move on when Child has drawn timelines illustrating how the clock labels shift during DST transitions without changing the 24-hour length of the day.
Photo by Startup Stock Photos on Pexels - 5
Our Time Agreement2 Min
- Ask what they discovered about the missing/extra hour and what surprised them.
- Move on when Child shares one key takeaway, such as 'the hour isn't lost, we just call it something different' or 'time is something we all agree on'.
Photo by Maurício Mascaro on Pexels
In The Mai App
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