# Mathematics / Year 2 / Number

Version 9
Curriculum content descriptions

recognise and describe one-half as one of 2 equal parts of a whole and connect halves, quarters and eighths through repeated halving (AC9M2N03)

Elaborations
• creating halves of a range of collections sets by sharing collections into \(2\) equal groups; for example, comparing half of a set of \(12\) washers with half of a set of \(8\) bolts to identify how they both represent one-half of their respective set
• creating halves using measurement attributes; for example, explaining that “a half is one part out of \(2\) equal parts of a whole”; equally folding a strip of paper, dividing a lump of playdough or separating a cup of water into \(2\) equal parts, then selecting one of the parts and naming it “one-half”; comparing half of a collection of \(10\) counters with half of a shape or object and explaining how each shows one-half of their respective wholes
• using repeated halving to subdivide shapes and objects in different ways to make corresponding halves, quarters and eighths; naming the parts and comparing the size of them to notice that they are all the same size, and demonstrating that a quarter is a half of a half and that an eighth is a half of a quarter
• dividing a shape into equal parts and relating the number of parts to the unit fraction; for example, if there are \(4\) equal parts then each part is a one-quarter and if there are \(8\) equal parts then each is one-eighth
General capabilities
• Numeracy Numeracy
ScOT terms

Simple fractions,  Eighths,  Halves,  Quarters

## Refine by topic

Related topic

### Mathematics – Multi-age – Year A – Unit 8

This sample multi-age unit explores the big idea 'what needs to be measured determines the unit of measurement'.

### Mathematics – Multi-age – Year A – Unit 15

This two-week unit develops student knowledge, understanding and skills of rational numbers and fractions.

### Work sample Year 2 Mathematics: Fractions

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 ...

### Fractions: Year 2 – planning tool

This planning resource for Year 2 is for the topic of Fractions. Students are extending their knowledge and understanding of the meaning of half to include equivalent fractions (e.g. 2 quarters and 4 eighths).

### Fractions: Lili's Breakfast - Calculate

This activity allows students to explore the concept of fractions in a familiar context. It lets them discover halves, quarters and eighths.

### Fractions: Design your own Flag - Calculate

This activity allows students to explore the concept of fractions with a focus on quarters. Adaptions can be made by changing the fraction. We want students to discover that the same fraction can look different but still have the same quantity/ amount.

### Operations: Foundation to Year 9

This comprehensive resource describes the progression of ideas that cover addition and subtraction of integers; multiplication and division of integers; the four operations with common and decimal fractions; and operation applications with percent, rate and ratio.

### First steps in mathematics: Number – Book 1

The content of this book is organised into topics including understanding whole and decimal numbers, and understanding fractional numbers.

### Number: Foundation to Year 9

This comprehensive resource describes the progression of number-related ideas showing the relationship to other curriculum strands. The resource demonstrates examples of relevant teaching strategies, investigations, activity plans and connected concepts in number including teaching and cultural implications.

### What is a quarter?

What is a quarter? You get quarters when you divide a whole into four equal parts. Each one of these four parts is a quarter. Watch this great explainer produced by Monique in collaboration with ABC Splash and see how she explains quarters.

### Cassowary fractions

Help a park ranger to arrange fencing in a wildlife sanctuary. Divide common geometric shapes into equal-sized sections for keeping cassowaries. Group the enclosures to form a quarantine zone for sick or injured birds. Then express the divisions of the enclosures as fractions. This learning object is one in a series of ...

### Fraction fiddle: matching cake fractions

Fill orders in a cake shop. Match a fraction to parts of a cake. For example, identify the fraction of a cake remaining after it has had one quarter removed. Check your prediction by making the fraction and seeing what it looks like as part of a circle. Watch the circle change as you adjust the numerals in the numerator ...

### Cassowary sanctuary

Help a park ranger to arrange fencing in a wildlife sanctuary. Divide common geometric shapes into equal-sized sections for keeping cassowaries. Group the enclosures to form a quarantine zone for sick and injured birds. Then express divisions of the enclosures as fractions. Work through facts about the life of cassowaries: ...

### Fraction basics - Easy & Effective Fractions Tutor - iTunes app

Learn about the core concepts of fractions through 12 animated clips. View the clips on the topic that you want to learn about. These clips will help build a string foundation in fractions. Free when reviewed on 12/5/2015.