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Estimating 1 minute Material: Stopwatch
Estimate how long is 1 minute using a stopwatch.
1 Prepare a list of watches that can measure seconds.
Example
2 Start the stopwatch and close your eyes at the same time. Open your eyes
and check the time when you think it has been 1 minute.
It is not
60 seconds yet…
I checked too
soon.
3 Draw an arrow to show the time you estimated on the next page.
22 Workbook B-12
Estimate how long is 1 minute using a stopwatch.
1 Prepare a list of watches that can measure seconds.
Example
2 Start the stopwatch and close your eyes at the same time. Open your eyes
and check the time when you think it has been 1 minute.
It is not
60 seconds yet…
I checked too
soon.
3 Draw an arrow to show the time you estimated on the next page.
22 Workbook B-12
