Fourth Class Maths Help — Step-by-Step Video Lessons & Practice

What is Fourth Class Maths?

Fourth Class maths is the fourth year of primary school mathematics in Ireland, taught to children who are typically 9–10 years old. Under Ireland's Primary Curriculum (NCCA), Fourth Class builds directly on Third Class skills and introduces more demanding work with larger numbers, fractions, decimals and measures. It is a pivotal year: the concepts children learn here form the foundation for Fifth and Sixth Class and eventually Junior Certificate maths.

What topics are covered in Fourth Class maths?

The Irish Primary Curriculum organises Fourth Class maths into five strands: Number, Algebra, Shape and Space, Measures, and Data. In practice this means your child will spend time on:

• Number: place value to millions, long multiplication and division, fractions (including equivalent fractions), decimals, and an introduction to percentages
• Algebra: number patterns, equations with unknowns, and properties of operations
• Shape and Space: 2D and 3D shapes, angles, lines and symmetry
• Measures: area, perimeter, length, weight, capacity and time
• Data: collecting, recording and interpreting data in bar charts, line graphs and pictograms

Each strand is interconnected — strong multiplication skills, for example, underpin both long division and equivalent fractions. StudyPug covers all five strands with individual video lessons for each topic, so your child never has to face a new concept cold.

Is Fourth Class maths hard? Common struggles and how to help

Many parents find Fourth Class maths the first year where homework becomes genuinely challenging. The numbers grow larger, multiple operations appear in the same problem, and abstract concepts like equivalent fractions and decimals demand a new kind of thinking.

The most common struggle points are:

• Long multiplication and division — keeping digits aligned and remembering each step in the algorithm
• Equivalent fractions — understanding why ½ = 4⁄8 requires both visual reasoning and multiplication fluency
• Decimals — especially linking decimals to fractions and understanding place value to hundredths
• Multi-step word problems — deciding which operation to use and in what order

The good news is that all of these difficulties respond well to seeing the method demonstrated clearly before practising it. That is exactly the model StudyPug uses: certified teachers walk through each concept step by step in a short video, and then adaptive practice questions let your child build fluency at their own pace — with instant feedback whenever they make an error.

How is Fourth Class maths assessed in Ireland?

In Ireland, Fourth Class pupils are assessed through a combination of ongoing teacher observation, standardised tests and formal school reports. Most primary schools administer a standardised maths test — such as Sigma-T or Drumcondra — once per year, typically in May or June. Results are reported to parents as a percentile rank or standard score alongside the school's own report. There is no state examination at this stage; the formal Junior Certificate comes later in Second Year of secondary school. Keeping track of your child's progress throughout the year — not just at test time — is the most reliable way to spot any gaps early. StudyPug's parent dashboard gives you that ongoing view, alongside a diagnostic assessment that shows exactly which Fourth Class topics need attention before the standardised test season arrives.

What comes after Fourth Class maths?

After Fourth Class your child moves into Fifth Class, where the pace increases noticeably. Key new topics include: operations with larger numbers including decimals, fractions of amounts, ratio and proportion, introduced algebra, more advanced data handling, and geometry including coordinates. The mental arithmetic and written calculation methods practised in Fourth Class are assumed knowledge in Fifth Class — children who arrive with strong foundations progress much more confidently. StudyPug's scope covers the full Irish primary programme so the transition from Fourth to Fifth Class (and on to Sixth Class) is fully supported.

Why StudyPug for Fourth Class maths?

There are many online resources for primary maths, but StudyPug is built differently. Here is what makes it stand out for Irish Fourth Class families:

• Diagnostic assessment from the very first session. Instead of starting at lesson one and hoping for the best, StudyPug runs a short diagnostic that identifies the specific topics your child finds difficult. You know exactly where to focus. No guessing, no wasted evenings.
• Certified-teacher concept videos. Every lesson is recorded by a qualified, experienced teacher — not generated by an algorithm. The teacher explains the concept and the method clearly, so your child understands why the process works, not just how to follow steps. This is real teaching.
• Adaptive practice that adjusts to your child. After watching a lesson your child works through practice questions that adapt to their level. Questions get slightly harder as confidence grows, and easier if your child is still finding the topic tricky. This keeps the session in the productive zone — challenging but achievable.
• Aligned to Ireland's Primary Curriculum. StudyPug's Fourth Class maths content maps directly to the NCCA strands and strand units. When your child's teacher moves on to a new topic, the matching StudyPug lesson is ready. There is no mismatch between what your child is learning in school and what they are practising at home.
• Parent dashboard and Family Plan. You can follow each child's progress individually — topics completed, practice scores, time spent. If you have more than one child, the Family Plan covers up to 5 children for one price, across every grade and subject.
• Printable worksheets for screen-free practice (Maths, up to Third Class). For younger children in the family, printable worksheets with full answer keys are available for Maths up to Third Class — a great option for evenings when you want to step away from screens.
• Free practice content and a 30-day money-back guarantee. You can access free practice content straight away, with no subscription required, to see whether StudyPug is the right fit. If you subscribe and decide it is not right within the first 30 days, you get a full refund. No risk.

What your child will learn in Fourth Class maths on StudyPug

StudyPug's Fourth Class maths programme covers every topic in the Irish Primary Curriculum for this year group. Key areas your child will work through include:

• Place value to millions and rounding
• Long multiplication (including two-digit multipliers) and long division
• Fractions: naming, comparing, equivalent fractions, ordering on a number line
• Decimals: tenths and hundredths, linking to fractions, adding and subtracting decimals
• Introduction to percentages and their relationship to fractions and decimals
• Number patterns and simple equations
• Area and perimeter of rectangles and irregular shapes
• 2D shapes: properties, symmetry, tessellation
• 3D shapes: faces, edges and vertices
• Measures: converting units of length, weight and capacity; 24-hour time
• Data: constructing and interpreting bar charts, line graphs and pictograms; finding the mean

Each topic has its own dedicated lesson video and practice set. Your child can jump straight to the topic their class is currently covering or follow the full programme in order — whatever works best for your family's routine.

How to use StudyPug for Fourth Class maths

Getting started is straightforward. Here is a simple routine that works well for Fourth Class families:

1. Run the diagnostic. On your first session, let your child complete the short diagnostic assessment. It takes around 10 minutes and produces a clear picture of which topics are solid and which need attention.
2. Watch the lesson video. When your child's class moves on to a new topic — or when the diagnostic flags a gap — find the matching StudyPug lesson. The video is short (usually 5–12 minutes) and taught by a certified teacher who explains every step.
3. Complete the adaptive practice. After the video, your child works through a set of practice questions. The difficulty adjusts automatically. Instant feedback means errors become learning moments rather than frustrations.
4. Check the parent dashboard. Log in to your parent view to see which topics your child has completed, their practice scores and how much time they have spent. Use this to guide the next session.
5. Use Photo Search if your child is stuck on a specific problem. StudyPug's Photo Search feature — available for all grades — lets your child photograph a maths problem and find the matching lesson instantly. It is a great way to get unstuck on homework without waiting for help.

Even 20 minutes of consistent practice on school evenings, guided by what the diagnostic and dashboard tell you, is enough to see measurable improvement in your child's Fourth Class maths marks over the course of a term.