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

BTN: Leap second

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.

Interactive

Sites2See – measurement for primary

Selected links to a range of interactive and print resources for Measurement topics in K-6 Mathematics.

Interactive

Time tools: 12-hour to the minute

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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Data helps describe and wonder about the world

This two-week unit introduces students to methods of displaying and interpreting sorted data, measuring the duration of time and reading and representing hour time. Students are provided opportunities to: collect, sort and organise data into displays; interpret data through posing and responding to questions; compare the ...

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Problems can be solved and represented in different ways

This two-week unit develops student knowledge, understanding and skills for solving problems related to number and time concepts. Students are provided opportunities to: solve problems by combining, separating and forming groups; sequence and identify the duration of events using a range of methods; read hour time on analog ...

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Measuring length and time

This two-week unit develops student knowledge, understanding and skills of what you want to describe decides the unit of measure you use. Students are provided with opportunities to: compare and describe the attributes of measurement, experiment with length and tell the time.

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Collections of ten are really useful

This two-week unit develops student knowledge and understanding that skills of collections of 10 are really useful. Students are provided opportunities to: represent numbers in a variety of ways; reason about the way numbers can be combined and separated; use positional language both in a physical world context and in more ...

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What needs to be measured determines the unit of measurement Multi-age 3–6 Year B – Unit 3

This 2-week unit unit develops the big idea that what needs to be measured determines the unit of measurement. Students are provided opportunities to: measure and compare lengths of objects and locations using kilometres, metres, centimetres and millimetres; identify and measure the perimeter of shapes, objects and locations; ...

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Work sample Year 2 Mathematics: Measuring time

This work sample demonstrates evidence of student learning in relation to aspects of the achievement standards for Year 2 Mathematics. The primary purpose for the work sample is to demonstrate the standard, so the focus is on what is evident in the sample not how it was created. The sample is an authentic representation ...

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Time Year 3 & 4 - Calculate

This lesson focuses on different ways to tell time.

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

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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Angles are the primary structural component of many shapes Multi-age 3–6 Year B – Unit 10

This 2-week unit unit develops the big idea that angles are the primary structural component of many shapes. Students are provided opportunities to: measure, compare and sequence events by halving and quartering blocks of time; represent fractional quantities of time and the multiplicative relationships; estimate and describe ...

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Data is collected to solve problems

This two-week unit develops student knowledge and skills in displaying and interpreting data, as well as connecting familiar events and actions to days of the week. Students are provided opportunities to: collect, sort and organise data into displays; interpret data through asking and responding to questions; collect and ...

Downloadable

My special time

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