The Pink, Blue and Green reading series: the Montessori path from encoding to real books

The three series, in detail

Each series is a set of materials built around words of a specific phonetic complexity. The child works through the materials at their own pace, typically over several months per series.

The pink series (CVC words). Consonant-Vowel-Consonant: cat, mat, hop, sun, fig. Every letter makes its standard phonic sound. No blends, no digraphs, no irregular spellings. The pink series is the first reading the child does: they sound out three letters, blend them, recognise a word they already know.

Pink materials typically include: small object boxes (a real toy cat, a mat, a pot), each with matching written labels; picture-word matching cards (a picture of a hat with a card saying 'hat'); phrase cards ('red cap', 'big pig'); command cards ('bring me the cat').

The blue series (blends and digraphs). Consonant blends: 'fr' in frog, 'bl' in blend, 'st' in step. Digraphs: 'sh' in ship, 'ch' in chip, 'th' in thin, 'ck' in duck. The blue series introduces the idea that two consonants together can make one sound or one quickly-blended sound, while each vowel still makes its standard single sound.

Blue materials use the same formats as pink: object boxes, picture-word cards, phrases, commands. The words are longer (four to six letters) and incorporate the new patterns.

The green series (phonograms and puzzle words). Phonograms: 'ai' in rain, 'ee' in tree, 'oa' in boat, 'igh' in night, 'ough' in through and about forty others. Puzzle words: 'was', 'said', 'they', 'the', 'where', 'have'. The green series teaches the irregularity of English systematically.

Green materials tend to be larger sets with dedicated cards for each phonogram (a set of ten words all containing 'ai', for example) and small groups of puzzle words introduced together.

Why you cannot skip the green

Because English is an irregularly-spelled language and the child who has finished the pink and blue series cannot read real books.

A child who has worked through pink and blue can read a sentence like "Tom fed the red cat". Every word follows standard phonic rules. The same child cannot read "Tom said he was there", because "said", "was" and "there" are all phonetically irregular. "The" is in the first pink series but the child also needs to know that "was" does not rhyme with "ass", that "said" does not rhyme with "braid" and that "there" is not a rhyme of "here".

The green series is where this happens. It is large and slow; most children take six months to a year to work through it. It is also where most home-ed reading regression happens: a family that has finished pink and blue in three months and thinks the child is reading often finds that real books are still hard, and the missing piece is the green series they skipped.

Some mainstream phonics schemes (Read Write Inc, Letters and Sounds) cover similar territory under different names. The green series is the Montessori equivalent; it cannot be skipped without one of those alternatives filling the gap.

The three formats

Each series has the same three working formats. The child moves between them across sessions.

Object boxes. A small basket of real objects whose names are in the series, each with a matching written label. The child reads each label and places it next to the correct object. This is the simplest format; it anchors the word in the concrete world.

Picture-word matching cards. A paired set of pictures and words, jumbled. The child reads each word card and matches it to its picture. This extends the work to two-dimensional representation and to words whose objects cannot sit on a shelf (rain, sky, house).

Phrase and command cards. Short written phrases or instructions the child reads and acts on. "Red cat." "Bring me the big pig." "Touch the green hat." Phrase cards are read. Command cards are read and performed; the performance is evidence that the reading has happened. Command cards are a favourite with many children; they turn reading into a physical game.

Common home mistakes

Racing through the pink series. A child who can read pink words fluently after a fortnight may not have consolidated them. Slow down. Add more pink material. The pace is set by the child's mastery, not by the calendar.

Skipping the object boxes. Parents sometimes assume the object boxes are for younger children and go straight to picture cards. The concrete objects matter; they anchor the reading in the physical world in a way that cards alone do not.

Not buying or making enough material. Ten pink-series object boxes plus twenty picture-word cards is a slim set; most children work through this in a month. Budget for a full pink set (Etsy printable sets are £15-25), and expect to use them all.

Skipping green. The most consequential mistake. Covered above.

Correcting reading errors during the work. A child reading "sed" for "said" is showing you where they are; they have decoded phonetically. The correction is to introduce "said" as a puzzle word in the green series, not to correct them mid-read.

Forcing specific books. The child reads the series, then moves to easy readers (Mr Putter and Tabby, the Ladybird Read it Yourself series at higher levels, the Bob Books). Forcing a specific book the child is not ready for turns reading into a chore.

A real family's year through the series

A mum we will call Grace started the pink series with her four-and-a-half-year-old daughter in January, after three months of moveable-alphabet work. She bought a printable set from Etsy for £18.

Pink work ran from January to April. Object boxes first, then picture-word cards, then phrase and command cards. Her daughter found the command cards hilarious ("Stand on one leg"; "Hug the cat"; "Put the pink cushion on the table"). By April she was reading CVC words fluently and asking for longer ones.

Blue series from April to June. Digraphs added new vocabulary fast (ship, chip, fish, bath, sock). Blends (frog, step, clap) took longer; her daughter sometimes read "fog" for "frog" until blend consolidation settled in.

Green series began in July and ran through the autumn term and into the spring. Phonograms were introduced one or two at a time; puzzle words in small groups. By February the following year, her daughter was reading the Ladybird Read it Yourself Level 3 books independently and asking for chapter books (Mr Putter and Tabby).

Total time from first pink object box to independent chapter reading: about thirteen months. Total cost: £18 for the pink/blue printable set, £30 for a green-series set, £0 for the command cards (hand-written on index cards), £25 for the first dozen easy readers from a charity shop. Under £75 for a full reading curriculum.