What is TetraTales?

WiseHart TetraTales is a structured science curriculum for young children, built around reasoning underneath the facts
rather than memorising the facts.

Who is it for?

WiseHart TetraTales is designed for children aged five to nine — but that range is a starting point rather than a hard boundary, and children vary enormously in what they already know and how they take in new ideas. A ten-year-old who has collected a lot of facts about animals or weather but never been asked why something works the way it does will find the lessons just as useful as a five-year-old meeting the ideas for the first time. The curriculum is built around conceptual understanding rather than prior knowledge, so the entry point is genuine curiosity, not age.

Why it matters?

Most children hit secondary science and find that the volume of content — the terminology, the diagrams, the definitions — starts to outpace their ability to make sense of it. Curiosity often tips into anxiety or disengagement.

The problem isn't that the science is too hard. The problem is that younger children are rarely taught the actual principles, moslty the fun and striking facts around them.

A six-year-old learns that ice-cream melts in the sun, but not why heat always travels from warmer things to cooler ones — and that direction, and the reason for it, is the same principle that organises heat engines, body temperature regulation, and climate systems. The fact is forgettable. The principle is a tool.

What WiseHart TetraTales does differently?

Most educational apps for young children do one of two things: they turn learning into a game where the science is basically decoration, or they present facts in a tidy list and call it done. Your child clicks a button, gets a star, and walks away knowing that "plants need sunlight" without understanding why — which is roughly the same as knowing that cars need petrol without knowing that petrol burns.

WiseHart TetraTales teaches real science — the principles, the reasoning, the underlying picture — in a form that younger children can genuinely engage with, so that when more formal science arrives, they already have something solid to build on.

Is this different from revision?

Flashcards are a reasonable way to maintain recall of isolated facts — but they work by rehearsal rather than understanding. When a child revises from a flashcard, they practice retrieving a stored answer. When they meet the same concept in a different context, there's no reasoning chain to help them reconstruct or adapt it, because the card only held the conclusion.

TetraTales lessons are built around the reasoning rather than the answer, so the child who understood why heat flows in one direction tends to recognise the same principle when it turns up somewhere new — in a question about body temperature, a problem about insulation, a diagram they've never seen. The understanding belongs to the child rather than to a revision schedule, because the child built it rather than stored it.

How does it work?

Each lesson weaves in something your child can observe or feel — a prompt to touch, notice, or try something in the room — and then asks what they noticed, then what they think would happen if one thing changed, and only then builds toward the underlying idea. Children don't sit still for these lessons; they get up, handle things, observe what happens, and bring that observation back to the screen with them, which tends to matter to parents who are already wary of another hour on a device.

The activities follow the same logic: children drag, sort, and sequence things not to show they've memorised the right word, but because the task itself requires a real judgment. Deciding what belongs together, or what comes before what in an energy chain, means forming an actual causal thought, not retrieving a stored label.

The lessons are built around a knowledge graph that grows across the curriculum, so each concept links to others rather than sitting on its own. A child who understands why ice melts in a warm hand is already building toward understanding why food cooks, why animals huddle in winter, why a jacket slows heat loss.

What to expect?

Each lesson — a TetraTale — takes around twenty to thirty minutes and moves through four connected sections, each anchored to a core concept and building on the one before it. Along the way your child will read, observe, get up and try something, drag and sort and sequence, and answer questions that don't have obvious answers.

The lesson closes with a dare question: something the child is invited to put to a parent or carer — not a quiz, but a genuine question worth arguing about over dinner, designed to keep the idea alive outside the app.

We recommend one TetraTale a day, and not because the lessons are long. It's because understanding of this kind needs time to settle — to get connected to things the child already knows, to surface in an unrelated conversation later that afternoon, to feel like theirs before the next idea arrives. Two lessons back to back is twice the content and half the understanding.

A conversation, not a lecture

Every TetraTale is designed to feel like a conversation — a warm, curious voice that talks with your child rather than at them, asks genuine questions, and waits for an answer. The child sets the pace throughout: they can pause, replay, or step back at any point. Children who prefer to read can mute the narration and work through the text instead, but the conversational shape of the lesson stays the same either way.

Along the way your child is an active participant: they answer questions, make predictions, get up and try something in the room, drag and sort and sequence ideas on screen, and wrestle with questions that don't have an obvious right answer.

Who is your child talking to?

The voice your child converses with is an AI tutor, but not one that roams freely. Every question, every response, and every path through the lesson runs along routes we have designed and tested in advance, grounded in our knowledge graph. The AI doesn't improvise or go off-script; it listens to your child's answer and follows a carefully mapped set of possibilities — which means the conversation feels responsive and natural, while staying completely within bounds we've defined. There are no surprises, no open internet, and no generated content your child might stumble into unexpectedly.

How do the lessons connect?

Each TetraTale is built around a single principle — one clear takeaway that the whole lesson moves toward. That principle sits inside a branching web of connected ideas, mapped to our knowledge graph, so each lesson links naturally to others that build on what your child now understands.

There are four or five good places to start, and none of them is wrong — whichever your child begins with, the lessons will gradually converge and connect into the same rich picture, just arriving there in a slightly different order.

On the home page, your child sees a set of coloured TetraTale covers: those are the ones available to start now. The greyed-out covers are lessons that are within reach but not yet unlocked — they build on principles the current lessons are still establishing, and they open up as your child progresses. It's a bit like a map where the roads ahead become visible as you walk, rather than all at once from the beginning.

Once a TetraTale is completed, it stays available. Your child can return to any lesson they've done — to revisit a question, catch something they missed, or simply because they want to.

Isn't real science too advanced for a five-year-old?

The principles TetraTales by WiseHart teaches are the real ones — not simplified stand-ins held back for secondary school. The thermodynamics is already in the question about why heat moves from warm to cold and not the other way round. The biochemistry is already in the question about where a plant's mass actually comes from. The reasoning about electrical resistance is already in sorting conductors from insulators and working out what makes the difference.

What changes later is the notation, and the precision, and the scale. The way of seeing that makes those things cohere — that's what your child is building now.

What difference does it make at school?

WiseHart TetraTales covers KS1 and KS2, but what it builds goes well past primary school. The reasoning a child develops here — why energy flows in one direction, how a part fits into a whole, what shifts when one variable in a system changes — is the same reasoning that organises GCSE physics, A-level biology, and undergraduate chemistry. It doesn't appear on a mark scheme and no flashcard names it, but it's what makes a subject feel intelligible rather than like a large pile of facts to keep sorted.

A student who already carries that reasoning walks into a new topic and looks for its logic rather than its vocabulary list. The memorisation is still there — exams require it — but it sits on top of an understanding that gives it structure, and structured knowledge is easier to retrieve, easier to apply, and easier to extend. The grade 9 gets more reachable not because the child worked harder but because the subject stopped being opaque. And once science makes sense from the inside, most children find they actually want to go further with it — which takes considerably less effort than grinding through material that never added up.

What difference does it make for life?

Science literacy isn't only useful in exams. A child who learned to ask why a system behaves the way it does — and what shifts when one part changes — grows into an adult who reads about a new medication, a climate policy, or a dietary study and knows what questions to ask. That kind of thinking doesn't go out of date when the technology changes. If anything it becomes more useful as the world gets harder to read.

The same habit of looking for connections also helps them understand a community, a policy decision. Children who grow up thinking in systems tend to notice that their choices ripple outward, because they can see the mechanism rather than just being told the conclusion. That makes them better placed to care for themselves, for the people around them, and for the planet they share — as a natural consequence of actually understanding how things connect.