The brick tower your child is narrating as a castle isn't just play — it's the cognitive foundation of writing, and it's more sophisticated than it looks.
"Look Mummy, this is a castle! The dragon lives upstairs and the knight comes through here and —"
Your child has built a tower. A single, simple tower. And they have given it an entire world.
This is not just your child being imaginative. This is early literacy in its most fundamental form: the ability to use symbols — a tower, a brick, a piece — to represent something else entirely, and to organise those symbols into a sequence that tells a story.
Long before your child learns to write words, they are writing stories. Brick play is where this happens.
When educators talk about early literacy development, they don't only mean knowing letters or being able to sound out words. They mean the full set of skills that underpin written language — the ability to understand that symbols stand for real things, that stories have structure (beginning, middle, end), that language can be used to communicate meaning to another person, and that sequences of events can be represented and recalled.
These skills develop years before formal reading and writing begin. And they develop primarily through symbolic play — the kind of play where a brick is a phone, a cushion is a mountain, and a tower is a castle.
Brick play is one of the richest forms of symbolic play available to young children.
The psychologist Jean Piaget called the period between ages 2 and 7 the preoperational stage — a time when children develop the ability to use symbols to represent the world. This is the same cognitive ability that allows adults to read: a squiggle on a page represents a sound, which represents a concept.
When your 4-year-old builds a tower and calls it a castle, they're demonstrating symbolic representation. The physical properties of the tower (its height, its solidity, its verticality) are being mapped to the properties of a castle (imposing, structural, defensible). That's a cognitively sophisticated operation happening almost effortlessly.
Research in symbolic play development shows that the complexity of a child's symbolic play — how many elements they can hold in a narrative, how consistently they maintain the symbol-object mapping — is predictive of later reading and writing ability. Brick play that is heavily narrative is not just imaginative play. It's literacy training.
Parents sometimes wonder why their child's brick play seems "less advanced" than other children's — why they don't build elaborate structures with stories attached. Narrative complexity in brick play develops gradually.
At age 4, the narrative is usually simple and single-threaded. A tower is a castle. The figure goes inside. That's the story. Repetition is valued — the same narrative gets replayed multiple times, which is the child consolidating the symbolic mapping.
At age 5, the narrative becomes more complex. The castle has multiple rooms, each with a different function. The story has a sequence: the knight arrives, then the dragon appears, then the knight wins. Parallel narratives emerge — two structures with different characters that interact.
At age 6, children can build and narrate multi-episode stories, with cause-and-effect sequences: "if the bridge breaks, the car can't get across, then the rescue can't come." This kind of conditional narrative thinking is closely related to the conditional logic used in mathematics and programming.
Let them lead the story. Your role is as audience and prompt. "Tell me about this" is more productive than "let's build a castle." The self-generated narrative is where the literacy development happens.
Extend by one element. If your child has built a castle and placed a figure inside, you might add: "What's the figure doing in there?" or "Is there a gate for people to come in?" This extension — one new element added to the existing narrative — challenges the child to develop the story one step further without overwhelming them.
Ask about sequence. For older 5- and 6-year-olds: "What happens first? And then what?" Getting children to narrate the sequence of events in their builds is directly practising the ordering skill that underlies written composition.
Don't correct the narrative. If your child calls a tower a castle and it clearly looks nothing like a castle to you, it is still a castle. The symbolic representation is what matters, not the accuracy of the visual match.
Speech and language researchers have traced a clear developmental pathway from symbolic play to reading readiness. Children who engage in rich, extended symbolic play:
Brick play doesn't just accompany literacy development. When it's narrative-rich and adults are engaged, it actively accelerates it.
Before children can read, they are already writers — constructing stories, managing sequences, using symbols to represent real and imagined worlds. Brick play at ages 4–6 is one of the richest available environments for this kind of early literacy development. The tower your child calls a castle is not a simple imaginative game. It is a cognitive exercise in symbolic representation — the exact same skill that reading and writing depend on. Your role as parent is audience, not instructor: listen to the stories, extend them with a question, and resist the urge to correct or direct. The literacy is in the narrative, and it's more sophisticated than it sounds.