MathsBites is your go-to guide for
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MathsBites is based on the NSW syllabus, but it also aligns with every concept your child learns in the Australian Curriculum. Each topic is matched to its NSW equivalent and brought to life through engaging MathsBites videos.

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Stage 2, Part A - Year 3

Whole numbers: Read, represent and order numbers to thousands

  • Group physical or virtual objects to show the structure of tens, hundreds and a thousand

  • Regroup numbers flexibly, recognising one thousand as 10 hundreds and one hundred as 10 tens or 100 ones

  • Compare and describe the relative size of numbers by positioning numbers on a number line

  • Count forwards and backwards by tens and hundreds on and off the decade

  • Represent numbers up to and including thousands using physical or virtual manipulatives, words, numerals, diagrams and digital displays

  • Read and order numbers of up to at least 4 digits

  • Identify the number before and after a number with an internal zero digit

Representing numbers using place value

Number

AC9M3N01
recognise, represent and order natural numbers using naming and writing conventions for numerals beyond 10 000

Whole numbers: Apply place value to partition and regroup numbers up to 4 digits

  • Record numbers using standard place value form

  • Partition numbers of up to 4 digits in non-standard forms

AC9M3N01
recognise, represent and order natural numbers using naming and writing conventions for numerals beyond 10 000


Additive relations

Use the principle of equality

  • Recognise equal differences and record them in number sentences

  • Use the equals sign to mean 'the same as', rather than to perform an operation

  • Apply the associative property of addition to forming multiples of 10

AC9M4N06 (Year 4 concept)
develop efficient strategies and use appropriate digital tools for solving problems involving addition and subtraction, and multiplication and division where there is no remainder

AC9M4A01 (Year 4 concept)
find unknown values in numerical equations involving addition and subtraction, using the properties of numbers and operations

Number

AC9M3N05
estimate the quantity of objects in collections and make estimates when solving problems to determine the reasonableness of calculations

 AC9M3A01
recognise and explain the connection between addition and subtraction as inverse operations, apply to partition numbers and find unknown values in number sentences

 AC9M4A01 (Year 4 concept)
find unknown values in numerical equations involving addition and subtraction, using the properties of numbers and operations

AC9M3A02
extend and apply knowledge of addition and subtraction facts to 20 to develop efficient mental strategies for computation with larger numbers without a calculator

Recognise and explain the connection between addition and subtraction

  • Use number relation principles to solve related problems

  • Demonstrate how addition and subtraction are inverse operations

  • Use the complement principle of addition and subtraction

  • Explain and check solutions to problems, including by using the inverse operation

Select strategies flexibly to solve addition and subtraction problems of up to 3 digits

  • Apply known mental strategies that use partitioning to add and subtract, such as bridging the decades

  • Use the compensation strategy to add and subtract

  • Apply the levelling and constant difference strategies

  • Represent solutions to addition and subtraction problems, including word problems, using an empty number line or bar model

  • Compare and evaluate strategies used to solve addition and subtraction problems, reasoning which strategy may be most efficient

AC9M3N03
add and subtract two- and three-digit numbers using place value to partition, rearrange and regroup numbers to assist in calculations without a calculator

AC9M3N06
use mathematical modelling to solve practical problems involving additive and multiplicative situations including financial contexts; formulate problems using number sentences and choose calculation strategies, using digital tools where appropriate; interpret and communicate solutions in terms of the situation

AC9M4N06 (Year 4 concept)
develop efficient strategies and use appropriate digital tools for solving problems involving addition and subtraction, and multiplication and division where there is no remainder

AC9M4N08 (Year 4 concept)
use mathematical modelling to solve practical problems involving additive and multiplicative situations including financial contexts; formulate the problems using number sentences and choose efficient calculation strategies, using digital tools where appropriate; interpret and communicate solutions in terms of the situation

Represent money values in multiple ways

  • Recognise the relationship between dollars and cents

  • Represent equivalent amounts of money using different denominations

  • Perform calculations with money, including finding change

AC9M4N08 (Year 4 concept)
use mathematical modelling to solve practical problems involving additive and multiplicative situations including financial contexts; formulate the problems using number sentences and choose efficient calculation strategies, using digital tools where appropriate; interpret and communicate solutions in terms of the situation

AC9M3M06
recognise the relationships between dollars and cents and represent money values in different ways


Generate and describe patterns

  • Model, describe and record patterns of multiples

  • Create and continue a variety of number patterns that increase or decrease by a constant amount

  • Recognise the significance of the final digit of a whole number in determining whether a given number is even or odd

  • Recognise the connection between even numbers and the multiplication facts for 2

  • Investigate the result of multiplying by one and zero

Multiplicative relations

AC9M3N06
use mathematical modelling to solve practical problems involving additive and multiplicative situations including financial contexts; formulate problems using number sentences and choose calculation strategies, using digital tools where appropriate; interpret and communicate solutions in terms of the situation

AC9M3N07
follow and create algorithms involving a sequence of steps and decisions to investigate numbers; describe any emerging patterns

AC9M4N02 (Year 4 concept)
explain and use the properties of odd and even numbers

AC9M4N08 (Year 4 concept)
use mathematical modelling to solve practical problems involving additive and multiplicative situations including financial contexts; formulate the problems using number sentences and choose efficient calculation strategies, using digital tools where appropriate; interpret and communicate solutions in terms of the situation

Number & Algebra

Use arrays to establish multiplication facts from multiples of 2 and 4, 5 and 10

  • Create and represent multiplicative structure, using the term multiples when connecting grouping to arrays

  • Use the array structure to coordinate the number of groups with the number in each group

  • Record the first 10 multiples formed by counting by twos, fours, fives and tens

  • Relate doubling to multiplication facts for multiples of 2

  • Recognise that doubling is multiplying by 2 and halving is dividing by 2

  • Recognise the relationship between one multiple and its double

  • Model square numbers and record in numerical and diagrammatic form

AC9M3N02
recognise and represent unit fractions including 1/2​, 1/3​, 1/4​, 1/5​ and 1/10​ and their multiples in different ways; combine fractions with the same denominator to complete the whole

AC9M3N04

multiply and divide one- and two-digit numbers, representing problems using number sentences, diagrams and arrays, and using a variety of calculation strategies

AC9M3N07
follow and create algorithms involving a sequence of steps and decisions to investigate numbers; describe any emerging patterns

AC9M4N06 (Year 4 concept)
develop efficient strategies and use appropriate digital tools for solving problems involving addition and subtraction, and multiplication and division where there is no remainder

AC9M3N04
multiply and divide one- and two-digit numbers, representing problems using number sentences, diagrams and arrays, and using a variety of calculation strategies

AC9M3A03
recall and demonstrate proficiency with multiplication facts for facts for 3,4,5 and 10; extend and apply facts to develop the related division facts

AC9M4A02 (Year 4 concept)
recall and demonstrate proficiency with multiplication facts up to 10 x 10 and related division facts; extend and apply facts to develop efficient mental strategies for computation with larger numbers without a calculator

Recall multiplication facts of 2 and 4, 5 and 10 and related division facts

  • Recognise and use the symbols for multiplied by, divided by and equals

  • Link multiplication and division fact families using arrays

  • Generate multiplication fact families for multiples of 2 and 4, 5 and 10

  • Model and apply the commutative property of multiplication

Represent and solve problems involving multiplication fact families

  • Describe multiplication problems using for each and times as many

  • Find the total of partially covered arrays

  • Apply the inverse relationship of multiplication and division

AC9M3N04
multiply and divide one- and two-digit numbers, representing problems using number sentences, diagrams and arrays, and using a variety of calculation strategies

AC9M4N06 (Year 4 concept)
develop efficient strategies and use appropriate digital tools for solving problems involving addition and subtraction, and multiplication and division where there is no remainder


Partitioned fractions

Create fractional parts of a length using techniques other than repeated halving

  • Make thirds of a length

  • Create fifths of a length

AC9M3N02
recognise and represent unit fractions including 1/2, 1/3, ​1/4, 1/5​ and 1/10​ and their multiples in different ways; combine fractions with the same denominator to complete the whole

Model and represent unit fractions, and their multiples, to a complete whole on a number line

  • Model fractions with fraction strips and diagrams for halves, quarters, eighths, thirds

  • Describe fraction families formed by dividing the whole into the same total number of equal parts as having the same denominator

  • Determine the complementary fractional part needed to complete one whole (halves, quarters, eighths, thirds)

  • Recreate the whole unit from a fractional part (halves, quarters, eighths, thirds)

AC9M3N02
recognise and represent unit fractions including 1/2, 1/3, ​1/4, 1/5​ and 1/10​ and their multiples in different ways; combine fractions with the same denominator to complete the whole


Geometric Measure

Position: Interpret movement on a map

  • Orient a map to determine directions to travel

  • Use given directions to follow routes on land and Aboriginal maps without a grid reference system

  • Describe a route taken on a map using landmarks and directional language

Measurement & Space

AC9M3SP02
interpret and create two-dimensional representations of familiar environments, locating key landmarks and objects relative to each other

Position: Locate positions on grid maps

  • Locate positions by coordinating horizontal and vertical references

  • Use the array (row and column) structure of grid maps to locate position, horizontal before vertical

Length: Measure and compare objects using metres, centimetres and millimetres

  • Measure and record lengths and distances using a combination of metres and centimetres

  • Estimate lengths and distances using known lengths as benchmarks, in metres and centimetres and check by measuring

  • Compare and order lengths and distances using metres and centimetres

  • Recognise the need for a formal unit smaller than the centimetre to measure length

  • Identify that there are 10 millimetres in one centimetre

  • Use the millimetre as a unit to measure lengths with a ruler

  • Record lengths using the abbreviation for millimetres (mm)

AC9M3SP02
interpret and create two-dimensional representations of familiar environments, locating key landmarks and objects relative to each other

AC9M4M01 (Year 4 concept)
interpret unmarked and partial units when measuring and comparing attributes of length, mass, capacity, duration and temperature, using scaled and digital instruments and appropriate units

AC9M3M02
measure and compare objects using familiar metric units of length, mass and capacity, and instruments with labelled markings

Angles: Identify angles as measures of turn

  • Identify angles with 2 arms in practical situations

  • Identify the arms and vertex of an angle

  • Recognise an angle as the amount of turning between 2 arms

  • Compare angles and explain that the length of the arms does not affect the size of the angle

  • Use the term right angle to describe a quarter-turn in a range of orientations

AC9M3M05
identify angles as measures of turn and compare angles with right angles in everyday situations


2D shapes: Compare and describe features of two-dimensional shapes

  • Describe and compare two-dimensional shapes, including parallelograms, rectangles, rhombuses, squares, trapeziums and kites

  • Identify and describe polygons that have parallel sides and those that do not

  • Identify quadrilaterals that have all sides equal in length

  • Identify right angles in shapes

  • Group quadrilaterals using one or more attributes

Two-dimensional spatial structure

AC9M3M05
identify angles as measures of turn and compare angles with right angles in everyday situations

Space

2D shapes: Transform shapes by reflecting, translating and rotating

  • Identify lines of symmetry in pictures, artefacts, designs and the environment

  • Draw lines of symmetry on given shapes and identify quadrilaterals that do not have lines of symmetry

  • Create and record tessellating designs by reflecting, translating and rotating triangles

  • Apply and describe amounts of rotation including half-turns, quarter-turns and three-quarter-turns when creating designs

AC9M4SP03
recognise line and rotational symmetry of shapes and create symmetrical patterns and pictures, using dynamic geometric software where appropriate

Area: Use square centimetres to measure and estimate the areas of rectangles

  • Create the array structure of area using squares (1 cm × 1 cm) in rows and columns

  • Recognise that area can be measured in square centimetres

  • Discuss strategies to estimate area in square centimetres

  • Explain how the grid structure of rows and columns helps to find the area

  • Estimate and measure the areas of squares and rectangles (within the range of 100 square centimetres)

  • Record area in square centimetres using numerals and words

  • Use efficient strategies for counting large numbers of square centimetres

AC9M4M02 (Year 4 concept)
recognise ways of measuring and approximating the perimeter and area of shapes and enclosed spaces, using appropriate formal and informal units

Area: Use square metres to measure and estimate the areas of rectangles

  • Recognise the need for a formal unit larger than the square centimetre to measure area

  • Construct a square metre and use it to measure the areas of large squares and rectangles

  • Recognise that an area of one square metre need not be a square

  • Record areas in square metres using numerals and words

  • Estimate the areas of squares and rectangles in square metres

AC9M4M02 (Year 4 concept)
recognise ways of measuring and approximating the perimeter and area of shapes and enclosed spaces, using appropriate formal and informal units


3D objects: Make models of three-dimensional objects to compare and describe key features

  • Identify the differences between prisms (including cubes), pyramids and cylinders

  • Construct models of prisms, pyramids and cylinders using physical or virtual manipulatives, identifying their features

  • Deconstruct everyday packages that are prisms (including cubes) to create nets

  • Investigate the variety of nets that can be used to create a particular prism

Three-dimensional spatial structure

AC9M3SP01
make, compare and classify objects, identifying key features and explaining why these features make them suited to their uses

Measurement

Volume: Measure and order containers using litres

  • Recognise the need for formal units to measure capacity (internal volume) accurately

  • Use the litre as a unit to measure capacities (internal volumes) to the nearest litre

  • Relate the litre to familiar everyday containers

  • Recognise that one-litre containers can be a variety of shapes

  • Record capacities (internal volumes) using the abbreviation for litres (L)

  • Estimate the capacity (internal volume) of a container in litres and check by measuring

AC9M3M02
measure and compare objects using familiar metric units of length, mass and capacity, and instruments with labelled markings

Volume: Compare objects using familiar metric units of volume

  • Construct rectangular prisms using cubic-centimetre blocks and describe the volumes in terms of layers

  • Record volumes using numerals and words

  • Compare the volumes of 2 or more objects made from cubic-centimetre blocks

AC9M3M01
identify which metric units are used to measure everyday items; use measurements of familiar items and known units to make estimates


Mass: Compare objects using the kilogram

  • Recognise the need for a formal unit to measure mass

  • Identify familiar objects that have a mass of about one kilogram

  • Record masses using the abbreviation for kilograms (kg)

  • Find objects that have an estimated mass of more than, less than and about the same as one kilogram and check by comparing to a 1 kg mass

Non-spatial Measure

Measurement

AC9M3M01
identify which metric units are used to measure everyday items; use measurements of familiar items and known units to make estimates

Time: Represent and read analog time

  • Use minutes to describe the duration of events

  • Identify 30 minutes as being a half-hour and 60 minutes as an hour

  • Connect the quarter-hour to 15 minutes

  • Recognise that the position of the numerals on an analog timepiece often represents 2 different values

  • Recognise that 5-minute intervals (corresponding to the hour markers) are used as benchmarks to read time on an analog clock

  • Read time as past the hour to half-past and then towards the hour

  • Read analog clocks to the minute

AC9M3M03
recognise and use the relationship between formal units of time including days, hours, minutes and seconds to estimate and compare the duration of events 

AC9M3M04
describe the relationship between the hours and minutes on analog and digital clocks, and read the time to the nearest minute


Collect discrete data

  • Pose questions about a matter of interest to obtain information that can be recorded in categories

  • Collect data from identified sources

  • Predict and create a list of categories for efficient data collection in relation to a matter of interest

Data

Statistics

AC9M3ST01
acquire data for categorical and discrete numerical variables to address a question of interest or purpose by observing, collecting and accessing data sets; record the data using appropriate methods including frequency tables and spreadsheets

Organise and display data using tables and graphs

  • Create a list or table to organise the data

  • Construct column graphs (with scale intervals of 1) and dot plots using relevant software where appropriate

  • Mark equal spaces (intervals) on axes, name and label axes and choose appropriate titles for column graphs

AC9M3ST01
acquire data for categorical and discrete numerical variables to address a question of interest or purpose by observing, collecting and accessing data sets; record the data using appropriate methods including frequency tables and spreadsheets

AC9M3ST02
create and compare different graphical representations of data sets including using software where appropriate; interpret the data in terms of the context

AC9M3ST02
create and compare different graphical representations of data sets including using software where appropriate; interpret the data in terms of the context

AC9M3ST03
conduct guided statistical investigations involving the collection, representation and interpretation of data for categorical and discrete numerical variables with respect to questions of interest

Interpret and compare data

  • Describe and interpret information presented in tally tables and column graphs

  • Investigate how data is interpreted to make decisions

  • Represent the same dataset using more than one type of display and compare the displays


Identify possible outcomes from chance experiments

  • Use the term outcome to describe any possible result of a chance experiment

  • Record all possible outcomes in a chance experiment where the outcomes are equally likely

  • Record all possible combinations in a chance situation where the outcomes are equally likely

  • Predict the number of times each outcome might occur in a chance experiment involving a set number of trials

  • Conduct experiments and compare the predicted and actual results where the outcomes are equally likely

Chance

Probability

AC9M3P01
identify practical activities and everyday events involving chance; describe possible outcomes and events as ‘likely’ or ‘unlikely’ and identify some events as ‘certain’ or ‘impossible’ explaining reasoning

 

AC9M3P02
conduct repeated chance experiments; identify and describe possible outcomes, record the results, recognise and discuss the variation

It’s a lot, right?

Don’t worry … MathsBites walks you through every single one, so that you are:

  • clear on exactly what your child is learning and how to help using the language and strategies they’ll use in class

  • ready to help them work with the maths concepts that are a part of their everyday lives

  • prepared, so when they get ‘stuck’, you can help them through

  • proactive rather than reactive.

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