Free Interactive Math Manipulatives

Free-play interactive tools your students explore directly. No tasks, no checks — just the manipulative.

Numbers & Counting

Number Talk Easel

Flash a picture, talk about the math

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Rekenrek

Twenty beads, one push — see the number

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Place Value Lab

Blocks, digits, and the number word — linked live

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Fraction Kitchen

Cut real food into equal parts — and share it fairly

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Money Mat

Count real coins onto the mat — in your classroom's own currency

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Choral Counting

Count aloud together while the chart writes itself — and the patterns pop.

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Estimation Jar

The weekly guess-how-many jar — counted out in tens, never ranked.

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Open Number Line

An empty line where the child draws their own jumps — the strategy, not the answer.

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Number Bonds Board

One whole, two parts — and a whole that never changes.

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Number Balance

The beam tips, so nobody has to say wrong — and the size of the tip tells you how far off you are.

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Pattern Bench

Clap it, colour it, shape it — and watch the class realise it was the same pattern all along.

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The Number Sieve

The clue does not tell you — it acts

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The Lids

Put two lids on a table of counters — each one hides the same number. The class argues its way to a number, parks a marker on it, and only then do the lids come up.

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The Exchange Machine

Carrying and borrowing are one machine, running in both directions.

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The Baking Tray

One tray, two facts: the hard one breaks into two the class already owns.

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The Folding Wall

A hundred cards on a shelf. Put away the tables the class owned before multiplication was taught, and twenty-one are left to learn.

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The Counting Cups

Too many to be worth counting one at a time — so the class scoops them ten at a time, and the number builds itself.

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The Number Hotel

A hundred rooms on ten corridors — and no door after 49, which is exactly why the tens digit changes.

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The Number Drum

Two rings of numerals — and the only place on this site where the 0 is drawn directly under the 9.

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The Landing Strip

Three posts on a bare strip — and after you open up a ten, the same three posts are there again.

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The Rounding Hill

Let go and it runs downhill into the nearest ten — until it lands on the ridge, where the ground is level and nothing happens at all.

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Choose the parade, say how many will be left standing — then call them through, as many abreast as the archway takes. Whoever is left standing is drawn exactly like everybody else; only the empty place beside them shows.

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The Doubling Mirror

Say the double, close the tray and count the counters as they land. Then open it, and the same counters share back out into two — one tray, both ways round.

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The Missing Question

Three empty places and no numbers at all — before anything is said, the class decides what could be asked.

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The Gap

Count what is on the ground. The gap covers it for a moment, and when it lifts the count is different — the class works out what happened while nobody could see.

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The Counting Line

Count a line of characters from one end, then the other. Everyone gets a different number, but how many is always the same.

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Measurement, Shape & Data

Ruler

Measure length in cm and inches

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Learning Clock

The clock that says the time the way people really say it

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Which One Doesn’t Belong?

Four things — and every answer can be right

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Measurement Bench

Guess first, then measure — length, capacity, and weight

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Sorting Hoops

Two hoops, one hidden rule — and the hoop decides, so you can go quiet and watch them think.

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Class Graph

The class answers a question, one child at a time — then watch the children turn into a bar graph.

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The Folding Sheet

Colour some squares, decide where the mirror is, and fold it to find out.

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The Rail That Waits

Build the plan, say where it will stop, then run it — and watch what one changed card does to everything after it.

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The Draw Bag

Say what you think is in the bag, then draw one at a time — every draw stays on the record and every piece goes back in — and run the very same bag again to watch it come out differently.

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The Unit Handle

Two tapes measure one object. Stretch the unit on one of them and its number climbs — while the object, and the other tape, have not moved at all.

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All the Way Round

A strand lies all the way round a shape, then lies down straight beside a scale ruled in the shape’s own width — and a circle always comes out at three and a bit.

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The Planks

Two planks grow from one line. Over the part where one reaches further a bracket appears, and that piece comes off and lands at the end of the short one — where together they reach exactly as far.

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Upright and Flat

A tall column with a scale beside it you can drag, numbered above and below zero — and one control that lays the whole thing flat, after which nothing about it has changed.

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The Blueprint

Nine squares, a number in each — and beside them the building those numbers make. Change the blueprint and the building follows; change the building and the blueprint follows.

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The Shape Stretcher

Turn a shape as far round as you like and nothing lets go. Lean it and a tag does — a tilt and a skew look alike, and only one of them hands you a different shape.

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