Learn the properties of shapes: name triangles and quadrilaterals by their sides and angles while you measure, build and sort shapes in a robot's factory.
Year 4 maths · 1
Year 4 maths · 1
Year 4 maths · 1
Year 4 maths · 1
Year 4 maths · 1
What the chapters cover in the national curriculum in England:
Properties of Shapes: Shape Inspectors is an interactive maths game that teaches children aged 7–10 to compare and classify triangles and quadrilaterals by their sides, angles and sizes, matching Year 4 of the national curriculum in England. Gizmo, a friendly robot inspector, narrates every step in a busy shape factory.
Players check shapes with a ruler, a corner checker and a parallel-lines tool. They learn the key terms as they go: a vertex is a corner, a right angle is a square corner, and parallel sides stay the same distance apart and never meet. They also drag corners on a dotty grid to build shapes and sort shapes into Venn and Carroll diagrams.
Every correct answer comes with a short reason, and the hints tackle common mix-ups, such as calling a turned square a diamond. An optional warm-up revises sides, vertices and right angles first.
The properties of a shape are the facts that describe it, such as how many sides and vertices it has, which sides are equal or parallel, and whether it has right angles. A shape's size and the way it is turned do not change its name.
An equilateral triangle has three equal sides, an isosceles triangle has exactly two equal sides, and a scalene triangle has no equal sides. Isosceles and scalene triangles can also be right-angled if one of their corners is a right angle.
Yes, a square is a special kind of rectangle. A rectangle is any four-sided shape with four right angles, and a square has four right angles as well as four equal sides. Not every rectangle is a square, though.
The game is designed for children aged 7 to 10. It matches the Year 4 geometry objective in the national curriculum in England: compare and classify geometric shapes, including triangles and quadrilaterals, based on their properties and sizes.
Playing everything takes about 45 minutes. There is an optional warm-up, five chapters and a 10-question Chief Inspector Challenge, and a narrator reads every instruction aloud. Children can open any chapter from the factory map.
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