Chalkline Express

What your child practices

Chalkline Express is about letter formation: where each letter starts, which line comes first, which way the pen goes, and where the letter sits between the lines. It follows the handwriting part of the Kindergarten and Grade 1 language standards most US schools use.

• Capital letters A to Z (Pre-K and Kindergarten, standard L.K.1a), starting with the straight-line letters like L, F, E and H.
• Lowercase letters a to z (Kindergarten and Grade 1, standard L.1.1a), with the "magic c" circle for a, d, g and q and tails that hang below the line for g, j, p, q and y.
• Numbers 0 to 9, each with its own cargo car that carries that many things, so writing 4 also means counting four pumpkins.
• Letter sounds: every letter is read aloud with its sound and an animal ("B says buh, like bear").

How to play

Tap All aboard! to start a trip of four letters. The first time a letter appears, a ghost engine drives each stroke while a finger shows the way. Then it is your child's turn: put a finger on the green dot and follow the arrows. The engine follows the finger and lays track. Numbers on the board show which line comes next.

Going off the path is never a fail. A puff of chalk dust, the track rolls back a little, and the engine waits with a green glow right where your child left off. Lifting the finger is fine too: the track stays, and your child picks up again at the engine.

As a letter gets easier, the help fades. First the full letter with arrows, then only a dotted letter and the starting dot, and finally just the chalk lines, where your child writes the letter on their own. When it is right, the chalk turns into golden track and up to three stars pop out.

Everything is spoken by the device's reading voice, so children who cannot read yet can play alone. The speaker button repeats the letter and what to do, and the eye button shows the demo again any time.

How the writing check works

When your child writes a letter freehand, the game compares each stroke to the real letter: the shape, the order of the lines, the direction of each line, and how it sits on the top, middle and bottom lines. It forgives wobbly lines, a slightly tilted letter and writing a bit bigger or smaller. It does not accept a different letter, so b is not d and a capital C is not a little c.

Three stars mean the shape, order and direction were all right. Two stars mean the letter was right but a line went the other way, came in a different order or sat a little off the lines, and the game says one short tip. If the letter is not right yet, the game says "Good try! Let us look at it together," shows how it goes, and your child traces it with the dots once more.

How it adapts

Letters come in an easy-first order that mixes capitals, numbers and lowercase: straight lines first (L, F, 1, E, H, l, T, I), then slants, then curves. Each letter moves through four steps: traced, traced well, dots done, and written alone.

If a stroke goes off the path twice, the engine shows that stroke again and the path gets a little wider. Letters that were tricky come back sooner in later trips, and new letters wait while three or more letters still need help. Letters your child knows well come back now and then to stay fresh.

The train and the town

Every new letter adds a car to your child's train: capitals carry a grown-up animal, lowercase letters carry the baby, and numbers carry cargo. When a letter is written alone on the chalk lines, its car turns gold. After each trip the whole train rides through town, and every three cars build something new, like a bakery, a windmill, a lighthouse or a castle.

Today's letter is one letter for the day, practiced big and little and then written alone. Letter Yard lets your child pick any letter or number, and My train and town shows every car and building. There are no timers, no streaks and nothing to lose.

For grown-ups

Press and hold the For grown-ups link on the title screen to see every letter and number colored by step, how many times each was practiced, and which ones are worth extra practice. You can turn capitals, lowercase or numbers on and off, choose a gentle, normal or steady tracing path, pick the reading voice, or start over.

Tips for grown-ups

• Sit nearby for the first trip and trace a letter in the air together while the engine shows it.
• A stylus or a fingertip both work. On a computer, a mouse works too.
• After a trip, try the same letters with a crayon on paper, big first and then small.
• Ask which animal rides in each car. "What sound does bear start with?" ties writing to letter sounds.

Privacy and safety

Chalkline Express is part of our learning games area. There are no ads, no accounts, no chat, no leaderboards and no tracking, and it loads nothing from outside services. Progress, cars and the town stay on the device. The engine, the animals and the town are all our own.

Questions