| General | Fanmades | Episodes | Episodes of Fanmade Levels |
The Levelling System is a special system dedicated to grouping and ordering Alphablocks, Numberblocks, and Colourblocks, episodes into five colour-coded levels depending on the the skills taught in each episode while Wonderblocks only got grouped into two. Wonderblocks might get more in the future.
There are currently 373 episodes in total, separated between these five levels, and here is a list of which episodes are in which level, and why that is.
The five levels will also be explained in each section.
If you want to include your own fanmade levels, please add them to this page.
Red Level One[]
"Level one is all about recognising the sounds that each letter makes. Children meet the letters in an order that allows them to start making words straight away − using sounding out and blending skills: saying the sounds that each letter makes and blending them together to make words. This level also helps children master the key skill of segmenting, breaking words they hear down into letter sounds." - Alphablocks
"Level 1 introduces the first five numbers and foundation skills including counting, recognising amounts on sight, comparing and sorting numbers and simple addition and subtraction." - Numberblocks
“In Level 1, your child will meet Colourblocks Red, Blue, Yellow and Green. Children learn to recognise and name these colours, spot them in everyday objects, see the differences between them and explore simple mixing to make new colours.” - Colourblocks
"Level 1 introduces the Wonderblocks Go and Stop and their friends the Do Blocks. Children learn how the Do Blocks help to make things happen in Thinkingland. They begin to explore problem-solving, ideas and plans, patterns and sequences and discover the fun of tinkering - trying something out to see what happens. All with a healthy dose of teamwork!" - Wonderblocks
New Alphablocks Topics[]
- Make words with S, A, T, P, I, N, M, D, G, O, C, K, E, U, R, H, B, F and L
- CVC words
- Short Vowels
- Digraphs LL, FF, SS and CK
New Numberblocks Topics[]
- The first 5 numbers
- Addition
- Counting
- Subtraction
- Number bonds
- Concept of zero
- Greater than, less than, and equal
New Colourblocks Topics[]
New Wonderblocks Topics[]
Orange Level Two[]
"Level two introduces the less common letters and rounds out the alphabet. Once your child knows all their letters and letter sounds, they can enjoy making and reading lots of simple words. They'll also meet the capital letters and letter names." - Alphablocks
"Level 2 takes us up to ten, developing the foundation skills and introducing number bonds, odds and evens, square numbers, number patterns, shapes and more." - Numberblocks
“Level 2 introduces Orange, Purple, Indigo and Violet. These new Colourblock characters help children to continue to build their colour vocabulary, explore more colour mixing, and start to understand colour order and simple patterns.” - Colourblocks
"In Level 2, children learn more about abstraction, decomposition and planning - in other words, how to think things through, breaking problems into smaller parts, trying things out and learning how to come up with a plan.They're introduced to debugging and logic – how to spot mistakes and use what they have learnt to fix them - and, with the help of Wonderblock Again, they can learn about loops – patterns that repeat. In the grand finale children revisit everything they’ve explored so far and are given the chance to reflect on how their thinking has grown." - Wonderblocks
New Alphablocks Topics[]
New Numberblocks Topics[]
- Numbers from 0-10
- 3D and 2D shapes
- Patterns
- Numerical patterns
- Decomposing numbers
- Odds and evens
- Smaller factors
- Minor algebra
- Square numbers
- Number lines and drawing numbers
- Identifying numbers by value
- Skip counting
- Probability
- Different signs for numbers
- Using a ten-frame
- Map language
New Colourblocks Topics[]
- The other basic colours
- The colours of the rainbow
- More colour mixing
- Making patterns
New Wonderblocks Topics[]
- Trial and error
- Debugging
- Experimentation
- Planning and breaking down tasks
- Following instructions
Yellow Level Three[]
"Level three introduces children to letter teams − two letters that join to make one sound, such as sh and ch, oo and ee. These are also known as digraphs. And they meet three-letter teams, such as igh and air − also known as trigraphs." - Alphablocks
"Level 3 takes us past ten with numbers who discover place value, doubling and halving, multiplication, division, factors and new number patterns." - Numberblocks
“Level 3 introduces Black, White, Grey, Pink and Brown. As they get to know these Colourblocks, children learn to recognise and name their colours, explore light and dark colours and discover that there’s more than one way to mix a colour.” - Colourblocks
New Alphablocks Topics[]
- Letter Teams (e.g. EA, EE and OO)
New Numberblocks Topics[]
- Numbers from 0-20
- Understanding place value
- Multiplication, factors, and division
- Money, length, and weight
- Simple times tables
- Patterns
- Perimeter
- Area
- Subitising
- Capacity
- Time and using clocks
- Symmetry
- Tallying
New Colourblocks Topics[]
- Tints and shades
- Multiple ways to make one colour
- Naming colours
Green Level Four[]
"Level four is all about letter blends − two consonants that make both of their sounds when they appear together (instead of a new single sound). Blends can be at the start of a word (such as st-, bl- or tr-) or at the end (such as -nd, -mp and -sk ). And there are three letter blends too: (such as spl- and str-) They are also known as consonant clusters." - Alphablocks
"Level 4 helps children become number explorers, discovering how the number system works and developing all their skills with two-digit numbers." - Numberblocks
”Level 4 is where children can meet The Printing Crew - Cyan, Magenta, Yellow and Black. Children discover the world of printer colours and learn about colour wheels.” - Colourblocks
New Alphablocks Topic[]
- Letter Blends (CCVC, CVCC, CCCVC, or CCVCC)
New Numberblocks Topics[]
- Numbers from 0-50
- Figuring out bigger numbers
- Multiples of ten
- Prime and composite numbers
- Highly composite numbers and their factors
- 3D polyominoes
- Factors of super rectangles
- Making multiples of 4 and 5 from smaller numbers
New Colourblocks Topics[]
Blue Level Five[]
"Level five is a big step − time to discover that there are different ways to make the long vowel sounds. We meet Magic E, who shows how split digraphs work: a vowel and e combine to make the long vowel sound (such as a-e in cake and o-e in home). And children complete their journey from meeting the alphabet to reading words like 'alphabet' with confidence." - Alphablocks
"Level 5 builds confidence in working and playing with numbers up to 100 and offers a sneak peak of how much bigger numbers work." - Numberblocks
“Level 5 introduces Lime, Sky Blue, Dark Blue. Children explore bright and dull colours and discover that there are in-between colours like orangey-red or reddish-orange. They'll see how mixing different amounts of colours gives different results and see the fun in being creative with colour.” - Colourblocks
New Alphablocks Topics[]
- Magic E
- Long Vowels
- Soft sounds
New Numberblocks Topics[]
- Numbers from 0-100
- Introduction to bigger Numberblocks
- Order of magnitude
- Huger step squads and squares
- Time table of 10x10 and bigger factors
New Colourblocks Topics[]
- In-between colours
- Mixing different amounts of primary and secondary colours
- Dull colours
Trivia[]
- The level code colours are exactly the same colours as Numberblocks One to Five.
- The Alphablocks levelling system is based on the UK Phonics Phase. In fact, in Series 2 to 4, the order of the spellings that are introduced is almost the same as the Phonics Phase.
- Level 1 is aligned to Phase 2. (Phase 1 builds on the Alphabet sounds)
- Level 2 is aligned to Phase 3, but only the letters introduced in that phase and digraphs ZZ and QU.
- Level 3 is aligned to Phase 3, but only the letter teams, minus ZZ and QU.
- Level 4 is aligned to Phase 4.
- Level 5 is aligned to Phases 5 and 6, but the spellings introduce are rearranged. Spellings that make long vowel sounds are moved to the front and are grouped by sound. First long a, then e, i, o, and finally both long sounds of u (flute, mute). Spellings for other sounds are moved to the end. This level currently doesn't cover alternate sounds for spellings, at least explicitly (i in wild).
- The first episodes of a level in Numberblocks is matching on each number series chronologically.
- The first episode of Numberblocks in Red Level One is in Series 1.
- The first episode of Numberblocks in Orange Level Two is in Series 2.
- The first episode of Numberblocks in Yellow Level Three is in Series 3.
- The first episode of Numberblocks in Green Level Four is in Series 4.
- The first episode of Numberblocks in Blue Level Five chronologically is in Series 5.
- The reason why Alphablocks Series 5-6 and Numberblocks Series 5-8 are not on the episode compilations is because they were uploaded before Alphablocks Series 5-6 and Numberblocks Series 5-8.
- Red Level One in Numberblocks is the only level to be available on Netflix.
- The Leveling system for Alphablocks was introduced in 2012, the Leveling system for Numberblocks was introduced in 2020, and the Leveling system for Colourblocks and Wonderblocks were introduced in 2025 but partily removed for Wonderblocks in the same year with 11 steps instead.



