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Browse by Grade: 3rd Class

Ireland · NCCA Curriculum Specifications

3rd Class Mathematical Explorers: Building Number and Space

A comprehensive third class curriculum focusing on the transition from concrete to abstract mathematical thinking. Students develop fluency in multiplication, explore the properties of 2D and 3D shapes, and apply data handling skills to real world scenarios.

5 units·42 topics·Ages 8-9

01The Power of Place Value and Operations

9 topics·Autumn Term

Students extend their understanding of the base ten system to 999 and develop flexible strategies for addition and subtraction.

Exploring Number Systems: Natural, Integers, Rational

Students will differentiate between natural numbers, integers, and rational numbers, understanding their properties and relationships.

Think-Pair-ShareConcept Mapping
Understanding Place Value in Decimals

Students will extend their understanding of place value to include decimal numbers, identifying the value of digits in tenths, hundredths, and thousandths.

Experiential LearningStations Rotation
Comparing and Ordering Integers and Rational Numbers

Students will compare and order integers and rational numbers (including fractions and decimals) using number lines and appropriate symbols.

Four CornersThink-Pair-Share
Addition and Subtraction of Integers

Students will develop strategies for adding and subtracting positive and negative integers, including using number lines and rules.

Collaborative Problem-SolvingProblem-Based Learning
Operations with Decimals: Addition and Subtraction

Students will perform addition and subtraction with decimal numbers, including those with different numbers of decimal places, in various contexts.

Stations RotationThink-Pair-Share
Problem Solving with Rational Numbers

Applying addition and subtraction of integers, fractions, and decimals to solve multi-step real-world problems.

Problem-Based LearningCollaborative Problem-Solving
Rounding and Significant Figures

Students will round numbers to a specified number of decimal places and significant figures, understanding the implications for accuracy.

Decision MatrixThink-Pair-Share
Estimation with Rational Numbers

Students will use estimation strategies to approximate answers to calculations involving integers, fractions, and decimals, and to check the reasonableness of exact answers.

Gallery WalkStations Rotation
Order of Operations (PEMDAS/BODMAS)

Students will apply the order of operations to evaluate numerical expressions involving integers, fractions, and decimals, including parentheses and exponents.

Case Study AnalysisProblem-Based Learning

02Multiplication and Algebraic Thinking

8 topics·Autumn Term

Introducing multiplication as repeated addition and exploring patterns in the hundred square.

Multiplication and Division of Integers

Students will understand and apply rules for multiplying and dividing positive and negative integers.

Stations RotationExperiential Learning
Multiplication and Division of Decimals

Students will perform multiplication and division with decimal numbers, including by powers of 10, and solve related problems.

Decision MatrixCollaborative Problem-Solving
Introduction to Exponents and Powers

Students will understand exponents as repeated multiplication and evaluate expressions involving positive integer exponents.

Stations RotationPeer Teaching
Prime Numbers, Factors, and Multiples

Students will identify prime and composite numbers, find factors and multiples, and determine the prime factorization of numbers.

Trading CardsThink-Pair-Share
Highest Common Factor and Lowest Common Multiple

Students will find the highest common factor (HCF) and lowest common multiple (LCM) of two or more numbers and apply them to problem-solving.

Problem-Based LearningExperiential Learning
Introduction to Algebraic Expressions

Students will understand variables, constants, and terms, and write simple algebraic expressions from verbal descriptions.

Carousel BrainstormStations RotationConcept Mapping
Evaluating Algebraic Expressions

Students will substitute values for variables into algebraic expressions and evaluate them using the order of operations.

Gallery WalkHexagonal Thinking
Introduction to Equations and Inequalities

Students will understand the concept of an equation as a balance and an inequality as a comparison, and represent simple situations algebraically.

Problem-Based LearningThink-Pair-Share

03Geometry and Spatial Reasoning

9 topics·Spring Term

Investigating the properties of 2D shapes and 3D objects in the environment.

Classifying Polygons and Quadrilaterals

Students will classify polygons based on the number of sides and angles, with a focus on properties of different quadrilaterals (parallelograms, rectangles, squares, rhombuses, trapezoids).

Stations RotationGallery Walk
Properties of 2D Shapes

Classifying polygons based on sides, angles, and symmetry.

Stations RotationGallery Walk
Drawing and Constructing 2D Shapes

Students will use rulers and other tools to draw and construct various 2D shapes.

Project-Based LearningExperiential Learning
Classifying 3D Shapes: Prisms and Pyramids

Students will classify 3D shapes, focusing on prisms and pyramids, based on their bases and lateral faces.

Stations RotationMuseum Exhibit
Euler's Formula for Polyhedra

Students will explore the relationship between the number of faces, edges, and vertices of polyhedra and apply Euler's formula (F + V - E = 2).

Stations RotationMuseum ExhibitCollaborative Problem-Solving
Surface Area of 3D Objects using Nets

Students will use nets to calculate the surface area of prisms and pyramids.

Experiential LearningProject-Based Learning
Types of Angles and Angle Measurement

Students will identify and classify angles (acute, obtuse, right, straight, reflex) and measure them using a protractor.

Escape RoomExperiential LearningThink-Pair-Share
Angles on a Straight Line and Around a Point

Students will apply the properties of angles on a straight line (sum to 180°) and angles around a point (sum to 360°) to solve problems.

Stations RotationExperiential Learning
Rotational and Axial Symmetry

Students will identify and describe rotational symmetry (order of rotation) and axial (line) symmetry in 2D shapes and patterns.

Gallery WalkThink-Pair-Share

04Measurement in the Real World

8 topics·Spring Term

Using standard units to measure length, weight, capacity, and time.

Units of Length and Conversions

Students will convert between different units of length (mm, cm, m, km) and apply these conversions to real-world problems.

Case Study AnalysisCollaborative Problem-SolvingStations Rotation
Perimeter of Compound Shapes

Students will calculate the perimeter of compound 2D shapes, including those with missing side lengths, and solve related problems.

Problem-Based LearningProject-Based Learning
Area of Rectangles and Triangles

Students will calculate the area of rectangles and triangles using appropriate formulas and apply these to problem-solving.

Inquiry CircleThink-Pair-Share
Time Zones and International Time

Students will understand the concept of time zones and calculate time differences between different locations around the world.

Role PlayStations Rotation
Speed, Distance, and Time Calculations

Students will understand the relationship between speed, distance, and time, and solve problems involving these quantities.

Think-Pair-ShareProblem-Based Learning
Financial Mathematics: Simple Interest

Students will calculate simple interest, understanding principal, rate, and time, and apply this to real-world financial scenarios.

Problem-Based LearningRole Play
Units of Mass and Conversions

Students will convert between different units of mass (mg, g, kg, tonnes) and apply these conversions to real-world problems.

Inquiry CircleStations Rotation
Units of Volume and Capacity, and Conversions

Students will convert between different units of volume (cm³, m³) and capacity (ml, l) and understand their relationship.

Inquiry CircleStations RotationDecision Matrix

05Data Handling and Probability

8 topics·Summer Term

Collecting, representing, and interpreting data to answer questions and make predictions.

Types of Data and Data Collection Methods

Students will differentiate between categorical and numerical data, and discrete and continuous data, and explore various methods of data collection (surveys, experiments, observation).

Collaborative Problem-SolvingExperiential Learning
Representing Data: Frequency Tables and Stem-and-Leaf Plots

Students will organize and represent data using frequency tables, including grouped frequency, and construct stem-and-leaf plots.

Decision MatrixGallery Walk
Representing Data: Bar Charts and Histograms

Students will create and interpret bar charts for categorical data and histograms for continuous numerical data, understanding the differences.

Case Study AnalysisProject-Based Learning
Measures of Central Tendency: Mean, Median, Mode

Students will calculate and interpret the mean, median, and mode for a given set of data, understanding when each measure is most appropriate.

Case Study AnalysisThink-Pair-ShareExpert Panel
Measures of Spread: Range and Interquartile Range

Students will calculate and interpret the range and interquartile range (IQR) to describe the spread or variability of a data set.

Inquiry CirclePhilosophical Chairs
Probability Scale and Terminology

Students will understand and use the probability scale from 0 to 1, and use appropriate terminology (impossible, certain, likely, unlikely, even chance) to describe the likelihood of events.

Inquiry CircleDecision MatrixCollaborative Problem-Solving
Calculating Theoretical Probability

Students will calculate the theoretical probability of simple events, expressing probabilities as fractions, decimals, and percentages.

Four CornersThink-Pair-Share
Experimental Probability and Relative Frequency

Students will conduct simple probability experiments, record outcomes, and calculate experimental probability (relative frequency), comparing it to theoretical probability.

Experiential LearningInquiry Circle