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Interactive geometry

Geometry your child can pull apart and rebuild.

Instead of staring at a fixed diagram, your child drags the points of a shape and watches what stays true. Drag a triangle into any shape you like and the three angles still add to 180 degrees. That is the moment a rule stops being something to memorise and becomes something they understand. Try it right here, no sign up needed.

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Years 7 to 12 Aligned to the Australian curriculum Seven constructions to explore
Live tool · drag the points
Why it works

A shape you can move is a rule you can prove.

Your child predicts what will happen, then drags the shape and checks. When the angles keep adding to the same total no matter how far they stretch the triangle, they have not been told the rule, they have discovered it. That kind of understanding stays with them into the exam and beyond.

They drag, it responds
Every point is grabbable. Your child reshapes the figure and the measurements update as they move, so cause and effect are obvious.
Discovery, not the answer
The tutor sets up each construction so your child forms a prediction first, then tests it. It guides them to the rule rather than handing it over.
The theorems that matter
From the angle sum of a triangle to Pythagoras and the circle theorems, the constructions cover the geometry your child meets across the secondary years.
Seven constructions

Explore the ideas at the heart of school geometry.

The tool above is the real geometry tool from inside the tutor. These are the constructions your child works through in a session, each one built to be dragged, stretched and explored.

Triangle anglesDrag any vertex and watch the three angles always sum to 180 degrees.
PythagorasSee the square on the hypotenuse match the other two, on any right triangle.
Parallel linesMove the transversal and discover the angle pairs that stay equal.
Exterior angleExplore why the exterior angle equals the two opposite interior angles.
Circle theoremDrag a point around the circle and see the inscribed angle hold its rule.
RectangleStretch a rectangle and track how area and perimeter respond.
SymmetryFold a shape across a line and check which points map onto which.
Built for Australia

Aligned to the geometry your child is actually studying.

Angle relationships, triangle properties, Pythagoras and the circle theorems run right through the Australian secondary maths curriculum. SubjectMate follows the same path your child follows at school, so the shapes they explore here are the ones they are learning to reason about in class.

Give your child geometry they can reach out and touch.

Start a 7 day free trial and give them the tutor that helps them understand, not just answer.

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