Miss Curtain's Blog

4A Barwon Heads Primary School.

June 4, 2015
by Miss Curtain

Calculating Time

As part of our unit of work on time, 4A had some fun calculating approximately how much time we spend doing certain activities.

After we finished our calculations we got very excited about the link we were able to make to a story in Just Crazy by Andy Griffiths. In the story Bandaid, Andy calculates how long he has had a bandaid on for:

“It’s been on for the last six months. I’ve grown quite attached to it actually, and it’s grown quite attached to me. . We’ve spent a lot of time together. I did some calculations and I figured that I’ve had the bandaid on for 182.5 days, which is 4380 hours, or 262800 minutes or 15 768 000 seconds. Tried to work it out in milli-seconds but there wasn’t enough room on the screen for all the zeros.”

Below are just a few of our many calculations:

DSC00287 DSC00288 DSC00289 DSC00290

DSC00291 DSC00292 DSC00293 DSC00294

We also watched an interesting clip on Behind The News about the leap second, which explained why an extra second is being added to the end of this month.



What do you know about ‘time’?

What do you know about the earth’s rotation?

What interesting facts have you discovered about the history of ‘time’?

How would you explain the leap second to a friend or family member who didn’t understand?

What were some of your time calculations?

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