![]() ![]() distinguish between regular and irregular polygons.find missing lengths and angles of rectangles.estimate and compare acute, obtuse and reflex angles.identify 3D shapes from 2D representations.identify lines of symmetry in 2D shapes.identify acute and obtuse angles and compare and order angles.compare quadrilaterals and triangles, based on their properties and sizes.identify horizontal and vertical lines and pairs of perpendicular and parallel lines.identify right angles and know that two make a half-turn, three make a three-quarter turn and four a complete turn.understand that a right angle is a quarter turn and know whether the turn is clockwise or anti-clockwise. ![]() compare and sort common 2D and 3D shapes.identify 2D shapes on the surface of 3D shapes.identify and describe 3D shapes, including the number of edges, vertices and faces.identify and describe the properties of 2D shapes, including the symmetry and line symmetry.sort, make and describe common 2D and 3D shapes.3D shapes including cubes, cuboids, pyramids and spheres.2D shapes including rectangles, squares, circle and triangles.In Year 1, children need to be able to recognise and name: Children are expected to be able to name these shapes, and also discuss the properties of these shapes. Teachers will often talk about the fact that 2D shapes are 'flat' and 3D shapes are not. The first thing they need to learn is the difference between 2D and 3D shapes. This is a rectangular prism which should be referred to as a cuboid.Throughout their time at primary school, children will be taught about various 2D (two-dimensional) and 3D (three-dimensional) shapes. This 3D shape is a type of prism.Ĭ) i) For neither (polyhedron): This is an irregular polyhedron or a compound solid***. The cross-sectional areas are congruent as shown by these yellow rectangles. Imagine the net folding up into a 3D shape. The faces are not the same they are different size rectangles. The 3D shape it will form is therefore a polyhedron.Ģ Identify if all the faces are the same regular shape. What 3D shape can be formed from this net?Īll the 2D shapes that make up this net are polygons they are all rectangles. Ii) For neither (non-polyhedron): those needed to be named on the GCSE syllabus are spheres and hemispheres.Įxample 1: naming a 3D shape from its net ![]() I) If yes, this is one of the Platonic solids (tetrahedron, cube, octahedron, dodecahedron or icosahedron).Ī) a pyramid or cone (3D shape with a base, an apex and similar cross-sectional areas).ī) a prism or cylinder (3D shape with congruent cross-sectional areas).Ī) For pyramids: the name of the base shape often forms the name of the 3D shape.ī) For prisms: the name of the cross-sectional area often forms the name of the 3D shape.Ĭ) i) For neither (polyhedron): This is an irregular polyhedron or a compound solid.
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