Australian Curriculum • Year 4 • Maths
Year 4 Maths Curriculum Australia: What Students Learn and How to Practise
Year 4 Maths expects students to combine growing fluency with explanation. Whole-number operations, multiplication and division, fractions and decimals, measurement, time, angles, symmetry, probability and data are increasingly connected through problem solving.
What changes in Year 4?
Students should move beyond one preferred method and compare strategies. They may use place value to calculate, relate multiplication to division, connect fractions to number lines and interpret measurement or data in context. A correct answer matters, but the representation and reasoning behind it matter too.
Use the exact curriculum unit
The Year 4 Maths curriculum units identify the specific learning goal. SkillrHub links Topic Guide → Teacher Slides → Worksheet → Practice → Test so instruction and assessment stay aligned. This is more useful than assigning a broad worksheet simply because it carries a Year 4 label.
Mix fluency with unfamiliar applications
After students can complete standard examples, vary the context, ask for missing values, compare methods or require an estimate first. For fractions and measurement, diagrams and number lines can expose misconceptions that may stay hidden in symbolic calculations.
Review errors before adding more questions
A persistent mistake often points to one underlying concept: place value, operation choice, fraction meaning or interpretation of a diagram. Use the topic guide to reteach that idea, then return to targeted practice. This is more efficient than sending the learner through another long mixed sheet.
Start with Year 4 Maths
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Australian Curriculum v9
Year 4 Maths curriculum codes at a glance
This guide is linked to the exact Australian Curriculum v9 content descriptions used by SkillrHub. There are 23 Year 4 Maths curriculum codes in this subject. Use the code list below to move from the broad year-level overview to the exact skill a student is learning.
Number
AC9M4N01 — And extend the application of place value to tenths and...
recognise and extend the application of place value to tenths and hundredths and use the conventions of decimal notation to name and represent decimals.
AC9M4N02 — Explain and use the properties of odd and even numbers
explain and use the properties of odd and even numbers.
AC9M4N03 — Find equivalent representations of fractions using related denominators and make...
find equivalent representations of fractions using related denominators and make connections between fractions and decimal notation.
AC9M4N04 — Count by fractions including mixed numerals; locate and represent these...
count by fractions including mixed numerals; locate and represent these fractions as numbers on number lines.
AC9M4N05 — Solve problems involving multiplying or dividing natural numbers by multiples...
solve problems involving multiplying or dividing natural numbers by multiples and powers of 10 without a calculator, using the multiplicative relationship between the place value of digits.
AC9M4N06 — Develop efficient strategies and use appropriate digital tools for solving...
develop efficient strategies and use appropriate digital tools for solving problems involving addition and subtraction, and multiplication and division where there is no remainder.
AC9M4N07 — Choose and use estimation and rounding to check and explain...
choose and use estimation and rounding to check and explain the reasonableness of calculations including the results of financial transactions.
AC9M4N08 — Mathematical modelling to solve practical problems involving additive and multiplicative...
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.
AC9M4N09 — Follow and create algorithms involving a sequence of steps and...
follow and create algorithms involving a sequence of steps and decisions that use addition or multiplication to generate sets of numbers; identify and describe any emerging patterns.
Algebra
AC9M4A01 — Find unknown values in numerical equations involving addition and subtraction...
find unknown values in numerical equations involving addition and subtraction, using the properties of numbers and operations.
AC9M4A02 — Recall and demonstrate proficiency with multiplication facts up to 10...
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.
Measurement
AC9M4M01 — Interpret unmarked and partial units when measuring and comparing attributes...
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.
AC9M4M02 — Ways of measuring and approximating the perimeter and area of...
recognise ways of measuring and approximating the perimeter and area of shapes and enclosed spaces, using appropriate formal and informal units.
AC9M4M03 — Solve problems involving the duration of time including situations involving...
solve problems involving the duration of time including situations involving “am” and “pm” and conversions between units of time.
AC9M4M04 — Estimate and compare angles using angle names including acute, obtuse...
estimate and compare angles using angle names including acute, obtuse, straight angle, reflex and revolution, and recognise their relationship to a right angle.
Space
AC9M4SP01 — Represent and approximate composite shapes and objects in the environment...
represent and approximate composite shapes and objects in the environment, using combinations of familiar shapes and objects.
AC9M4SP02 — And interpret grid reference systems using grid references and directions...
create and interpret grid reference systems using grid references and directions to locate and describe positions and pathways.
AC9M4SP03 — Line and rotational symmetry of shapes and create symmetrical patterns...
recognise line and rotational symmetry of shapes and create symmetrical patterns and pictures, using dynamic geometric software where appropriate.
Statistics
AC9M4ST01 — Acquire data for categorical and discrete numerical variables to address...
acquire data for categorical and discrete numerical variables to address a question of interest or purpose, using digital tools; represent data using many-to-one pictographs, column graphs and other displays or visualisations; interpret and discuss the information that has been created.
AC9M4ST02 — Analyse the effectiveness of different displays or visualisations in illustrating...
analyse the effectiveness of different displays or visualisations in illustrating and comparing data distributions, then discuss the shape of distributions and the variation in the data.
AC9M4ST03 — Conduct statistical investigations, collecting data through survey responses and other...
conduct statistical investigations, collecting data through survey responses and other methods; record and display data using digital tools; interpret the data and communicate the results.
Probability
AC9M4P01 — Possible everyday events and the possible outcomes of chance experiments...
describe possible everyday events and the possible outcomes of chance experiments and order outcomes or events based on their likelihood of occurring; identify independent or dependent events.
AC9M4P02 — Conduct repeated chance experiments to observe relationships between outcomes; identify...
conduct repeated chance experiments to observe relationships between outcomes; identify and describe the variation in results.
Curriculum descriptions are reproduced from the curriculum data used to organise SkillrHub resources. The Australian Curriculum remains the authority for official wording and scope.
Free-first learning
Try the free resources first
Before committing to another monthly or yearly learning subscription, use the free curriculum-linked resources available for the student’s current topic. Start with the Topic Guide, use Practice, review mistakes and then take the separate Test.
A larger paid question bank or learning program can be useful, but paying for more volume does not guarantee that a student will use it consistently. If the learner is already working through the free resources and still needs extra tutoring, marking, adaptive practice, reporting or more question volume, compare paid options for that specific need.
Free-first check: establish a consistent Learn → Practice → Test routine before deciding whether an additional paid service offers something the learner will genuinely use.