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Listed under:  Science  >  Scientific inquiry  >  Instrumentation (Technology)  >  Measuring instruments  >  Clocks
Video

BTN: Leap second

  • TLF-IDM019986

We all know there are 60 seconds in a minute... or are there? Every few years an extra second is added to a day, and this is called a 'leap second'. Find out why we have leap seconds and why they mightn't be around for much longer.

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Interactive

Time tools: 12-hour to the minute

  • TLF-IDL9643

Explore time by using the clock controls to change and match times on analogue and digital clocks. Explore 12-hour time and the passing of time from am to pm. Match clock times to the time presented on a Master clock. Play a game and find the matching time cards in the smallest number of possible tries.

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Downloadable

My special time

  • TLF-IDA003545

Students tell time to the hour and half-hour. They match analog and digital time representations.

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Text

'Dog In, Cat Out' - Time Unit - Calculate

  • TLF-IDA004346

Using the Australian children's book 'Dog In, Cat Out' (written by Gillian Rubinstein and illustrated by Ann James) the lesson sequences and activities in this unit are a way to help children from Foundation to Grade 2 level gain an understanding of the concept of time, its measurement and its numeration.

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Text

Time Year 3 & 4 - Calculate

  • TLF-IDA004342

This lesson focuses on different ways to tell time.

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