Patterns are everywhere in mathematics, and children encounter them long before they can write a number sentence. A simple row of red and blue bricks is a child’s first encounter with the same mathematical idea that underpins algebra, multiplication, and data analysis. When teachers and parents use Lego to explore patterns and sequences, they give children a concrete, tactile way to build genuine mathematical understanding, not just the ability to repeat a colour order on command.
At LearningMole, a UK educational platform founded by former primary teacher Michelle Connolly, we’ve long advocated for hands-on approaches that bridge the gap between play and curriculum progression. Lego bricks are one of the most versatile concrete manipulatives available in any home or classroom, and they work equally well at the EYFS level as they do when introducing KS2 children to linear sequences and the early foundations of algebraic thinking. The activities in this guide are mapped to the UK National Curriculum, covering Number and Place Value strands in KS1 and early Algebra concepts in KS2.
This guide moves deliberately from simple repeating patterns in the Early Years through to growing sequences and rule-finding in Key Stage 2. Each section includes specific activities, curriculum links, and guidance on how to use the physical properties of Lego bricks, including stud counts, to deepen mathematical thinking. Whether you’re a Year 1 teacher planning a maths lesson, a parent looking for a Saturday activity with real learning value, or a KS2 practitioner wanting to make sequences visual and memorable, you’ll find something here that you can use straight away.
Pattern recognition is not a standalone skill; it is the cognitive thread that connects arithmetic to algebra. When a child identifies that a sequence increases by two each time, they are performing the same reasoning that, years later, will allow them to find the nth term of a linear sequence. Starting that reasoning with physical bricks rather than abstract symbols removes the anxiety that often accompanies early algebra and replaces it with genuine understanding.
Research in primary mathematics consistently supports the concrete-pictorial-abstract (CPA) approach, which begins with physical objects before moving to images and then to numbers and symbols. Lego bricks are an ideal concrete tool because they offer multiple mathematical properties at once: colour, shape, height, length, and stud count. A single activity can address pattern type (repeating or growing), counting, and spatial reasoning simultaneously.
“Pattern-spotting is one of those skills that children with strong mathematical intuition seem to do naturally, but it absolutely can be taught,” says Michelle Connolly, Founder of LearningMole and former teacher with over 15 years of classroom experience. “When children build sequences with their hands, they feel the pattern before they see it on paper, and that physical memory makes the abstract version far more approachable later on.”
This matters particularly for children who struggle with number fluency. A child who can’t yet reliably count to 20 can still identify a repeating colour pattern, experience success, and begin building the pattern-recognition skills they’ll draw on throughout primary school.
In the EYFS framework, pattern work sits within the Mathematics area of learning, specifically under the strand of recognising and creating patterns. The goal at this stage is not algebraic rigour; it is the development of noticing and predicting, two foundational cognitive skills that children will carry through every Key Stage.
The simplest starting point is the AB pattern: one red brick, one blue brick, one red brick, one blue brick. For very young children, the key milestone is not just copying the pattern but predicting what comes next and explaining why. Ask children to close their eyes while you extend the sequence by two bricks, then open their eyes and tell you what they see. This simple act of prediction and verification is early mathematical reasoning.
Once AB patterns are secure, introduce ABC patterns using three colours. The extra element is cognitively significant: children who breeze through AB patterns often need more time here, because the brain has to hold three items in sequence rather than two. Use bricks of clearly different heights as well as colours to give children a second sensory confirmation of the pattern.
AABB patterns (two reds, two blues, two reds) are often introduced too late. They represent a meaningful step up from AB because the unit of repeat is longer and requires more working memory to track. They also provide a natural bridge to later skip-counting work: a child who reliably identifies AABB patterns in bricks is ready to notice that counting in twos follows the same rhythm.
Use a simple mat or strip of card with brick outlines to help children place their bricks deliberately. When the pattern is complete, cover it and ask the child to rebuild it from memory. This adds a retrieval element without turning it into a formal test.
Pattern Progression Table for EYFS
| Pattern Type | Example Build | Maths Skill Developed |
|---|---|---|
| AB | Red, Blue, Red, Blue | Prediction, repetition |
| ABC | Red, Blue, Yellow, Red, Blue, Yellow | Memory, 3-element sequence |
| AABB | Red, Red, Blue, Blue, Red, Red | Skip-counting preparation |
| AAB | Red, Red, Blue, Red, Red, Blue | Irregular rhythm, attention |
The shift from repeating to growing patterns is the most significant conceptual step in primary pattern work, and it’s one that many teaching resources skip entirely. A repeating pattern cycles through the same elements; a growing pattern increases or decreases according to a rule. That rule is the seed of algebraic thinking.
Build a staircase: one brick in column one, two bricks in column two, three in column three, four in column four. Ask children what they notice. Most will immediately spot that each column is one taller than the one before. Ask them how many bricks would be in the tenth column without building it. This is, in a very real sense, their first encounter with the idea that a rule can predict a value you haven’t calculated yet, the core idea of a function.
Vary the rule: a staircase that goes up by two each time (2, 4, 6, 8) introduces the two-times table as a growing sequence rather than a list to memorise. Use red bricks as the base and blue bricks as the additions so children can see the constant (red) and the variable (blue) as physically separate objects. This colour-coding of mathematical components is a technique that will transfer directly to bar model work later in KS1 and KS2.
Most Lego pattern activities treat bricks as coloured blocks and ignore the studs entirely. This misses a significant mathematical opportunity. A 2×2 brick has 4 studs, a 2×4 has 8, a 2×8 has 16. Laying these out in sequence and counting the studs introduces doubling sequences, which are among the most important patterns in primary number work.
Ask children to line up bricks in order of stud count and record the number sequence. This connects the physical activity to written maths without requiring children to abandon the concrete. The resulting number string (4, 8, 16) is also a first encounter with exponential growth, handled entirely through something children can hold in their hands.
Age-Stage Activity Matrix
| Year Group | Activity | National Curriculum Link |
|---|---|---|
| Reception / Year 1 | AB and ABC repeating patterns | EYFS: recognise and create patterns |
| Year 1 / Year 2 | Growing staircase (+1 rule) | KS1: sequences and number patterns |
| Year 2 | Stud-count sequences (2s, 5s, 10s) | KS1: count in steps of 2, 5, 10 |
| Year 3 / Year 4 | Growing patterns with stated rule | KS2: Number sequences, pattern rules |
| Year 5 / Year 6 | nth-term reasoning with bricks | Growing patterns with stated rules |
By Year 4, the National Curriculum requires children to count in multiples and recognise number sequences. By Year 6, they are expected to describe and extend sequences and begin working with simple formulae. Using Lego in KS2 might feel counterintuitive, but the physical act of building and measuring sequences gives children a concrete reference point when sequences are presented abstractly.
Give children a rule, “this sequence grows by 3 each time”, and ask them to build it starting from 1. The resulting build (1, 4, 7, 10, 13…) is an arithmetic sequence, and children who have constructed it will have a much stronger intuition for why the differences between terms are constant than children who have only seen it written. Ask them to predict the 8th or 10th term: those who have genuinely understood the rule will reach for a multiplication strategy naturally.
Intentionally building a mistake into a sequence and asking children to find it is one of the most powerful and underused activities in primary pattern work. Build a growing sequence of eight columns where one is the wrong height, then challenge children to identify the error and explain their reasoning. This error analysis task requires children to hold the rule in mind and test each term against it, far more cognitively demanding than simply extending a correct sequence.
For the classroom, have children build their own “sabotaged” sequence for a partner to fix. This requires them to understand the rule well enough to break it deliberately, which is a strong indicator of genuine understanding rather than procedural competence.
A common misconception among primary children is confusing symmetrical patterns with repeating sequences. A symmetrical build (1, 2, 3, 2, 1) looks like a pattern but doesn’t follow a consistent additive or multiplicative rule. Placing a symmetric build and a linear growing sequence side by side and asking children to compare them is a productive discussion starter that sharpens mathematical vocabulary and reasoning.
These three activities work in any setting, require no printed resources, and scale easily for mixed-ability groups.
One player builds a sequence of five or six columns following a secret rule. The second player studies the sequence and must state the rule in words before placing the next three columns. If they’re right, they win a point. This game develops mathematical communication alongside pattern recognition, and the verbal explanation is as important as the physical build.
Give two children identical piles of bricks and build a sequence on your side of a screen or book divider. One child builds the sequence, then passes verbal instructions only for the other to replicate it. When the divider comes down, comparing the two builds shows children how precise mathematical language needs to be. This works well as a paired activity in Year 2 or Year 3 and ties directly to Speaking and Listening objectives in English.
Build a correct sequence, then swap one element to break the rule. Challenge the child to find the “criminal brick” and fix the pattern. For KS2, require the detective to explain not just which brick is wrong but why it breaks the rule, using precise language about the sequence.
LearningMole’s curriculum-aligned video resources cover maths topics across EYFS, KS1, and KS2, with visual demonstrations of the concrete-to-abstract approaches that underpin effective pattern and sequence teaching. Our educational videos are designed to work alongside classroom activities like the ones above, giving children a second encounter with each concept in a format that suits different learning styles.
For teachers planning a patterns and sequences unit, LearningMole offers resources aligned with the UK National Curriculum that address Number sequences in KS1, Algebra foundations in KS2, and the EYFS Mathematics framework. For parents supporting home learning, our videos explain the same concepts children encounter at school in clear, accessible language that makes follow-up activities at home straightforward.
Explore LearningMole’s primary maths resources at learningmole.com, where you’ll find free content alongside subscription access to our full library of 800+ curriculum-aligned videos.
A pattern is a repeated arrangement, the same unit cycles again and again, like red, blue, red, blue. A sequence is an ordered list of objects or numbers where each item follows a specific rule, often involving addition or multiplication. Sequences don’t have to repeat; they grow or shrink according to that rule. In the UK National Curriculum, children work with repeating patterns in EYFS and KS1, then progress to number sequences with rules in KS2. Understanding both is part of the foundations of algebraic reasoning.
Primary children encounter five main types: AB patterns (two-element repeats), ABC patterns (three-element repeats), AABB patterns (two of each element), growing patterns (sequences that increase by a fixed amount), and shrinking patterns (sequences that decrease by a fixed amount). Growing and shrinking patterns are the most mathematically significant because they introduce the idea of a rule that generates each term, which is the foundation of algebraic thinking. Lego bricks are particularly effective for all five because the physical build makes the structure of each type visible and tangible.
Use rhythmic language and physical action together. As you place each brick, say its colour out loud: “red, blue, red, blue.” Ask the child to finish the sentence: “red, blue, red, ?” The prediction is the key moment. Once a child can predict the next element reliably, ask them to predict the one after that, then the one three places ahead. That extension task, predicting beyond the visible, is the first step towards understanding a rule rather than just imitating a sequence.
Patterning is firmly a mathematical skill, and one of the most important in primary education. The ability to recognise regularities and predict what comes next is the cognitive foundation of algebraic reasoning, multiplication, and data interpretation. The EYFS framework includes pattern recognition within the Mathematics area of learning, and it connects directly to the Number sequences work in KS1 and the Algebra strand in KS2. Using creative materials like Lego doesn’t make it less mathematical; it makes the mathematical thinking accessible to children at an earlier stage.
Focus on growing sequences with a stated rule. Give children a starting value and a rule (“start at 3, add 4 each time”), then ask them to build it physically, record the values as a number sequence, and use the rule to predict the 8th or 10th term without building. The stud-count approach, where bricks are selected for their stud numbers (4, 8, 16 for a doubling sequence), directly connects physical activity to number properties. For higher-attaining pupils, introduce the error analysis game, a sequence with one deliberate mistake that they must find and justify correcting.
Children begin informal pattern work in the Early Years Foundation Stage from around age 3 or 4, focusing on repeating colour and shape patterns. Formal number sequences, where children count in steps of 2, 5, or 10, appear in the Year 1 and Year 2 National Curriculum. By Year 4, children are expected to recognise and extend sequences, and by Year 6, they are working with simple formulae and describing rules for sequences. LearningMole’s maths resources address each of these stages with age-appropriate explanations and activities.
Use the same physical activity at different levels of abstraction simultaneously. Lower-attaining pupils work with visible, tactile AB or ABC patterns; middle groups extend growing sequences by building additional columns; higher-attaining pupils record the sequences as number strings and use the rule to predict distant terms without building. The shared physical material means all groups can participate in the same discussion. Adding a verbal explanation requirement, “tell me why that brick goes there,” differentiates further without changing the core activity.
LearningMole provides curriculum-aligned teaching resources for primary maths, including materials that support concrete-to-abstract progression in pattern and sequence work. Visit learningmole.com to access free resources and explore our subscription library, which covers maths topics across EYFS, KS1, and KS2. Our resources are designed by experienced educators and aligned with the UK National Curriculum, making them suitable for classroom use, guided group work, and home learning support.
Teaching patterns and sequences with Lego works because it makes abstract mathematical structure visible and handleable. A child who has physically built a growing sequence, predicted its tenth term, and fixed a deliberate error in a classmate’s build has not just completed a fun activity; they have done the same cognitive work as a student finding the rule for a linear sequence, just without the notation that often triggers anxiety. The concrete stage is not a shortcut for younger or lower-attaining children; it is an essential stage for every child, and Lego makes it easy to deliver.
The progression from EYFS colour patterns to KS2 linear sequences is longer and more mathematically significant than most resources suggest. By mapping each activity deliberately to the UK National Curriculum and using the physical properties of the bricks, colour, height, and stud count as distinct mathematical tools, teachers and parents can turn a box of Lego into a genuinely powerful maths resource. LearningMole’s curriculum-aligned video resources can support this work at every stage, providing visual explanations that reinforce the concepts children build with their hands.
If you’re planning a patterns unit and want to extend the learning beyond bricks, LearningMole’s primary maths resources cover number sequences, growing patterns, and algebraic foundations with the same concrete-first approach that makes Lego so effective. Visit learningmole.com to explore free videos and teaching materials aligned with the National Curriculum, from EYFS through to the end of KS2.
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