This course delivers the complete 5th Class mathematics curriculum through nine integrated modules covering place value and decimals, all four operations with whole numbers and decimals, fractions, decimals and percentages, measures, time and money, 2D and 3D shape with angles and symmetry, data handling, chance, coordinates, and early algebra. Students develop computational fluency, visualise concepts through manipulatives and real-life contexts, and apply skills in extended modelling projects such as designing a class garden, planning a school trip, and running a class shop. The distinctive emphasis on connecting mathematical strands through practical investigation and pupil-led modelling builds deep conceptual understanding and problem-solving confidence.
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Everything you need for Maths, all year.

A complete year of Maths, delivered by teacher-led interactive-whiteboard lessons, a printed pupil Activity Book, and a Teacher Resource Book, built to the NCCA Primary Mathematics Curriculum.

Interactive whiteboard lessons
Pupil Activity Book Mathematics 123learn Mata the otter Look inside
Teacher Resource Book Mathematics 123learn Teacher resource books and materials Look inside

Explore the Course

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Extends the base-ten system from whole numbers to decimals to thousandths; builds fluency in reading, writing, partitioning and comparing decimals; introduces percentages and negative numbers.

What We Already Know: Place Value to Millions Sample Activity Book Teacher Resources
One Whole, Ten Parts: Introducing Tenths Sample Activity Book Extension Sheet Teacher Resources
Reading Decimals to Tenths and Hundredths Sample Activity Book Extension Sheet Teacher Resources
Decimals on a Number Line Sample Activity Book Extension Sheet Teacher Resources
Comparing Two Decimals Sample Activity Book Extension Sheet Teacher Resources
Ordering a Set of Decimals Sample Activity Book Extension Sheet Teacher Resources
Decimals to Thousandths Sample Activity Book Extension Sheet Teacher Resources
Rounding Decimals to the Nearest Whole, Tenth and Hundredth Sample Activity Book Extension Sheet Teacher Resources
Money Is Decimal: €1.20 and €1.02 Are Not the Same Sample Activity Book Extension Sheet Teacher Resources
Percent as Out of One Hundred Sample Activity Book Extension Sheet Teacher Resources
Equivalent Fractions, Decimals and Percents: First Walk Sample Activity Book Extension Sheet Teacher Resources
Equivalent Fractions, Decimals and Percents: on Your Own Sample Activity Book Extension Sheet Teacher Resources
Negative Numbers: a First Encounter Sample Activity Book Extension Sheet Teacher Resources
Comparing Positive and Negative Numbers Sample Activity Book Extension Sheet Teacher Resources
Real-life Decimals: Class Survey Sample Activity Book Extension Sheet Teacher Resources

Extends the four operations to multi-digit whole numbers and decimals; builds operation flexibility; introduces factors, multiples and prime / composite numbers.

Mental Addition Strategies: Partitioning and Compensating Sample Activity Book Extension Sheet Teacher Resources
Written Addition: Multi-digit Whole Numbers Sample Activity Book Extension Sheet Teacher Resources
Adding Decimals: Line up the Points Sample Activity Book Extension Sheet Teacher Resources
Subtraction Strategies: Counting on, Take Away, Decomposition Sample Activity Book Extension Sheet Teacher Resources
Subtracting Decimals Sample Activity Book Extension Sheet Teacher Resources
Multiplication Facts: Unfinished Business Sample Activity Book Extension Sheet Teacher Resources
Multiplying by 10, 100 and 1000 Sample Activity Book Extension Sheet Teacher Resources
Multiplying a Multi-digit Number by a Single Digit Sample Activity Book Extension Sheet Teacher Resources
Multiplying Two Two-digit Numbers Sample Activity Book Extension Sheet Teacher Resources
Dividing by a Single Digit: the Bus-stop Method Sample Activity Book Extension Sheet Teacher Resources
Division with Decimal Answers: Sharing What's Left Sample Activity Book Extension Sheet Teacher Resources
Order of Operations: Brackets, Division, Multiplication, Addition, Subtraction Sample Activity Book Extension Sheet Teacher Resources
Factors, Multiples, Prime and Composite Numbers Sample Activity Book Extension Sheet Teacher Resources
Operation Toolbox in a Class Trip Plan Sample Activity Book Extension Sheet Teacher Resources

Extends the base-ten system from whole numbers to decimals to thousandths; builds fluency in reading, writing, partitioning and comparing decimals; introduces percentages and negative numbers.

What We Already Know: Place Value to Millions Sample Activity Book Teacher Resources
One Whole, Ten Parts: Introducing Tenths Sample Activity Book Extension Sheet Teacher Resources
Reading Decimals to Tenths and Hundredths Sample Activity Book Extension Sheet Teacher Resources
Decimals on a Number Line Sample Activity Book Extension Sheet Teacher Resources
Comparing Two Decimals Sample Activity Book Extension Sheet Teacher Resources
Ordering a Set of Decimals Sample Activity Book Extension Sheet Teacher Resources
Decimals to Thousandths Sample Activity Book Extension Sheet Teacher Resources
Rounding Decimals to the Nearest Whole, Tenth and Hundredth Sample Activity Book Extension Sheet Teacher Resources
Money Is Decimal: €1.20 and €1.02 Are Not the Same Sample Activity Book Extension Sheet Teacher Resources
Percent as Out of One Hundred Sample Activity Book Extension Sheet Teacher Resources
Equivalent Fractions, Decimals and Percents: First Walk Sample Activity Book Extension Sheet Teacher Resources
Equivalent Fractions, Decimals and Percents: on Your Own Sample Activity Book Extension Sheet Teacher Resources
Negative Numbers: a First Encounter Sample Activity Book Extension Sheet Teacher Resources
Comparing Positive and Negative Numbers Sample Activity Book Extension Sheet Teacher Resources
Real-life Decimals: Class Survey Sample Activity Book Extension Sheet Teacher Resources

Extends the four operations to multi-digit whole numbers and decimals; builds operation flexibility; introduces factors, multiples and prime / composite numbers.

Mental Addition Strategies: Partitioning and Compensating Sample Activity Book Extension Sheet Teacher Resources
Written Addition: Multi-digit Whole Numbers Sample Activity Book Extension Sheet Teacher Resources
Adding Decimals: Line up the Points Sample Activity Book Extension Sheet Teacher Resources
Subtraction Strategies: Counting on, Take Away, Decomposition Sample Activity Book Extension Sheet Teacher Resources
Subtracting Decimals Sample Activity Book Extension Sheet Teacher Resources
Multiplication Facts: Unfinished Business Sample Activity Book Extension Sheet Teacher Resources
Multiplying by 10, 100 and 1000 Sample Activity Book Extension Sheet Teacher Resources
Multiplying a Multi-digit Number by a Single Digit Sample Activity Book Extension Sheet Teacher Resources
Multiplying Two Two-digit Numbers Sample Activity Book Extension Sheet Teacher Resources
Dividing by a Single Digit: the Bus-stop Method Sample Activity Book Extension Sheet Teacher Resources
Division with Decimal Answers: Sharing What's Left Sample Activity Book Extension Sheet Teacher Resources
Order of Operations: Brackets, Division, Multiplication, Addition, Subtraction Sample Activity Book Extension Sheet Teacher Resources
Factors, Multiples, Prime and Composite Numbers Sample Activity Book Extension Sheet Teacher Resources
Operation Toolbox in a Class Trip Plan Sample Activity Book Extension Sheet Teacher Resources

Curriculum Mapping

See exactly how this course maps to official curriculum specifications

Curriculum Area
Outcomes
Algebra
Patterns, rules and relationships
ALG.PRR.4a ALG.PRR.4b
Expressions and equations
ALG.EXP.4
Data and chance
Data
DAT.DAT.4a DAT.DAT.4b
Chance
DAT.CHN.4a DAT.CHN.4b
Measures
Measuring
MEA.MSR.4a MEA.MSR.4b
Time
MEA.TIM.4
Money
MEA.MON.4
Number
Place value and base ten
NUM.PVT.4
Sets and operations
NUM.OPS.4
Fractions
NUM.FRC.4a NUM.FRC.4b
Shape and space
Spatial awareness and location
SHA.SAL.4a SHA.SAL.4b
Shape
SHA.SHP.4a SHA.SHP.4b
Transformation
SHA.TRN.4a SHA.TRN.4b

The curriculum does not include official reference codes for individual learning outcomes, so we have assigned a code scheme to make it easier to identify and track coverage.

What Students Will Learn

Learning Goals

  1. Master place value, decimals to thousandths, negative numbers, and their connections to fractions, percentages and money
  2. Develop fluency in mental and written strategies for addition, subtraction, multiplication and division with whole numbers and decimals
  3. Work confidently with fractions, equivalent forms, operations, ratio, proportion and percentage of quantities
  4. Measure and calculate accurately using metric units for length, mass, capacity, perimeter, area and volume in real contexts
  5. Apply mathematical understanding to data handling, probability, algebra, shape, time, money and open-ended modelling projects

Learning Outcomes

  1. Read, write, compare, order and round decimals up to thousandths, including on a number line and in money contexts.
  2. Add, subtract, multiply and divide whole numbers and decimals using mental strategies, column methods and the bus-stop division algorithm.
  3. Simplify, compare, order, add and subtract fractions with same and different denominators, and find fractions and percentages of quantities.
  4. Convert between metric units of length, mass and capacity; calculate perimeter, area of rectangles and triangles, and volume of cuboids.
  5. Read analogue and 24-hour clocks, calculate elapsed time, read timetables, add and subtract money, and solve multi-step money problems.

What You'll Need

Required Equipment

Equipment used in some of the lessons in this course. Items can be shared among students.

3D solids
base-ten blocks
Coin
Compass
Counters
Demonstration ruler
Dice
Dienes blocks
IWB/Projector/Large Screen
IWB/Projector/Large Screen
Kitchen scale
Making Change worksheet
Masking tape
Measuring jug
Metre stick
Metre tape
Multilink cubes
Pattern blocks
Polydron
Protractor
Pupil ruler
Real household solids
Scissors
Sequences and Number Lines sheet
String
Tally frame worksheet

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