Plenty of shape names to learn. By year 6 children should be able to use, read and write the following words:
pattern, shape, two-dimensional, three-dimensional, line, side, edge, face, surface, base, point, angle, vertex, vertices, centre, (or center in the US) radius, diameter, net, curved, regular, irregular, concave, convex, circular, triangular, hexagonal, cylindrical, square-based, right-angled, congruent, concentric, tangram, circumference, arc.
They should be able to recognise and classify the following 2D and 3D shapes:
circle, semi-circle, triangle, equilateral triangle, isosceles triangle, scalene triangle, quadrilateral, rectangle, oblong, square, parallelogram, rhombus, kite, trapezium, pentagon, hexagon, heptagon, octagon, polygon, cube, cuboid, pyramid, sphere, hemisphere, cylinder, cone, prism, tetrahedron, octahedron, dodecahedron, polyhedron.
You can look up these words using an online dictionary such as the MathSphere Dictionary or Kids Dictionary for Maths.
The worksheets below are a test of this knowledge.