Australia · ACARA Content Descriptions
Year 1 Mathematics
This course establishes critical early numeracy and spatial reasoning skills through hands-on exploration. Students move from concrete representations to abstract thinking while developing the language to explain their mathematical logic.

Number Sense and Counting Systems
Students explore the structure of our number system by counting, sequencing, and partitioning numbers up to 100.
Investigating how numbers grow and the patterns found in the hundreds chart.
Developing an understanding of place value by grouping objects into tens and ones.
Learning to make sensible guesses about quantity based on visual benchmarks.

Additive Thinking and Operations
Moving beyond simple counting to understand the relationship between addition and subtraction.
Using physical materials to model addition as joining and subtraction as taking away.
Building fluency with doubles, near-doubles, and bridging to ten.
Reframing the equal sign as a symbol of balance rather than an instruction to solve.

The Geometry of Our World
Exploring the properties of 2D shapes and 3D objects in the environment.
Identifying and describing features of shapes and objects using formal and informal language.
Giving and following directions and understanding movement in space.
Identifying and creating symmetrical patterns and shapes.

Measuring My Environment
Using informal units to compare and quantify length, mass, and capacity.
Comparing the lengths of objects directly and indirectly using uniform units.
Using hefting and containers to explore how heavy things are and how much they hold.
Understanding cycles of time including days of the week and telling time to the half hour.

Data and Probability
Collecting information to answer questions and exploring the likelihood of events.
Creating simple displays like object graphs and pictographs to represent information.
Analyzing data to identify outliers, trends, and answers to inquiry questions.
Using everyday language to describe the outcomes of familiar events.

Patterns and Algebraic Logic
Identifying, creating, and extending patterns in shapes and numbers.
Recognizing the core of a pattern and predicting what comes next.
Using patterns in sequences of 2s, 5s, and 10s to build multiplication readiness.
Using logic to find missing numbers or shapes in a sequence.