Irish Curriculum · 1st Class Maths

1st Class Maths Lesson Plan & Curriculum Map

A full-year 1st Class Maths lesson plan aligned to the Primary Mathematics Curriculum in Ireland. Week-by-week lessons for 1, 2 or 3 days a week from September to August, covering counting on and partitioning, combining numbers within 15 and 20, addition and subtraction, the commutative property, money, counting and numeration to 50, data, weight, rounding strategies and two-digit addition with regrouping.

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4Terms

48Weekly checkpoints

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1st Class Maths learning map

Choose a term, then compare a lighter weekly plan with a more intensive schedule.

1 day/week · steady pace2–3 days/week · guided practice

September · Revision of Counting On and Partitioning

1st Class Maths — September Lesson Plan

Irish Curriculum · Mathematics

Week	1 Day/Week	2 Day/Week	3 Day/Week
September 1st week (Mathematics)	Revision of Counting On and Partitioning & More 1: Revision of Counting On and Partitioning	Revision of Counting On and Partitioning & More 1: Revision of Counting On and Partitioning	Revision of Counting On and Partitioning & More 1: Revision of Counting On and Partitioning 2: More Than / Less Than
September 2nd week (Mathematics)	Revision of Counting On and Partitioning & More 2: More Than / Less Than	Revision of Counting On and Partitioning & More 2: More Than / Less Than 3: Money and Addition	Revision of Counting On and Partitioning & More 3: Money and Addition 4: Numerals 10–15
September 3rd week (Mathematics)	Revision of Counting On and Partitioning & More 3: Money and Addition	Revision of Counting On and Partitioning & More 4: Numerals 10–15	Revision of Counting On and Partitioning & More 5: Review & Consolidation 6: Practice Activities & Check
September 4th week (Mathematics)	Revision of Counting On and Partitioning & More 4: Numerals 10–15 5: Review & Consolidation 6: Practice Activities & Check	Revision of Counting On and Partitioning & More 5: Review & Consolidation 6: Practice Activities & Check	Revision of Counting On and Partitioning & More Applied Practice Activity

October · Combining Numbers within 15

1st Class Maths — October Lesson Plan

Irish Curriculum · Mathematics

Week	1 Day/Week	2 Day/Week	3 Day/Week
October 1st week (Mathematics)	Combining Numbers within 15 & More 1: Combining Numbers within 15	Combining Numbers within 15 & More 1: Combining Numbers within 15	Combining Numbers within 15 & More 1: Combining Numbers within 15 2: Partitioning and Counting On
October 2nd week (Mathematics)	Combining Numbers within 15 & More 2: Partitioning and Counting On	Combining Numbers within 15 & More 2: Partitioning and Counting On 3: 2-D Shapes	Combining Numbers within 15 & More 3: 2-D Shapes 4: The Ten Frame and Doubles
October 3rd week (Mathematics)	Combining Numbers within 15 & More 3: 2-D Shapes	Combining Numbers within 15 & More 4: The Ten Frame and Doubles	Combining Numbers within 15 & More 5: Review & Consolidation 6: Practice Activities & Check
October 4th week (Mathematics)	Combining Numbers within 15 & More 4: The Ten Frame and Doubles 5: Review & Consolidation 6: Practice Activities & Check	Combining Numbers within 15 & More 5: Review & Consolidation 6: Practice Activities & Check	Combining Numbers within 15 & More Applied Practice Activity

November · The Commutative Property of Addition

1st Class Maths — November Lesson Plan

Irish Curriculum · Mathematics

Week	1 Day/Week	2 Day/Week	3 Day/Week
November 1st week (Mathematics)	The Commutative Property of Addition & More 1: The Commutative Property of Addition	The Commutative Property of Addition & More 1: The Commutative Property of Addition	The Commutative Property of Addition & More 1: The Commutative Property of Addition 2: Addition within 15
November 2nd week (Mathematics)	The Commutative Property of Addition & More 2: Addition within 15	The Commutative Property of Addition & More 2: Addition within 15 3: Subtraction – Complementing	The Commutative Property of Addition & More 3: Subtraction – Complementing 4: Ordinal Number
November 3rd week (Mathematics)	The Commutative Property of Addition & More 3: Subtraction – Complementing	The Commutative Property of Addition & More 4: Ordinal Number	The Commutative Property of Addition & More 5: Review & Consolidation 6: Practice Activities & Check
November 4th week (Mathematics)	The Commutative Property of Addition & More 4: Ordinal Number 5: Review & Consolidation 6: Practice Activities & Check	The Commutative Property of Addition & More 5: Review & Consolidation 6: Practice Activities & Check	The Commutative Property of Addition & More Applied Practice Activity

December · Subtraction

1st Class Maths — December Lesson Plan

Irish Curriculum · Mathematics

Week	1 Day/Week	2 Day/Week	3 Day/Week
December 1st week (Mathematics)	Subtraction & More 1: Subtraction	Subtraction & More 1: Subtraction	Subtraction & More 1: Subtraction 2: Spatial Awareness
December 2nd week (Mathematics)	Subtraction & More 2: Spatial Awareness	Subtraction & More 2: Spatial Awareness 3: Numeration	Subtraction & More 3: Numeration 4: Addition
December 3rd week (Mathematics)	Subtraction & More 3: Numeration	Subtraction & More 4: Addition	Subtraction & More 5: Review & Consolidation 6: Practice Activities & Check
December 4th week (Mathematics)	Subtraction & More 4: Addition 5: Review & Consolidation 6: Practice Activities & Check	Subtraction & More 5: Review & Consolidation 6: Practice Activities & Check	Subtraction & More Applied Practice Activity

The learning framework

Anatomy of a focused lesson

Each session moves from a clear focus to guided practice and a quick check for understanding.

10 minutes

Warm up and connect

Start with a quick number talk or maths game linked to the week’s 1st Class topic.

25 minutes

Model and practise

Explore the idea with concrete materials and visuals, then practise with guided and independent questions.

10 minutes

Check for understanding

Finish with a short check-in activity so the tutor knows exactly what to revisit next lesson.

Student learning toolkit

Resources for 1st Class Maths

Concept lessons

Clear explanations of each 1st Class maths topic in the order it comes up in school.

Practice problems & quizzes

Practice problems, concept reviews and quizzes matched to each week of the plan.

Maths games & real-world tasks

Maths games and real-world applications that keep practice engaging.

Progress notes

Regular feedback for parents on strengths, gaps and next steps.

Free first lesson

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Tell us where your child is with 1st Class maths, and we will shape the first lesson around their schoolwork and goals.

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