Page 58 - Demo

Lesson 27: Grobby learns about shapesIn this lesson children will handle, explore and come to know a number of 2D and 3D shapes.TasksThe children write the name of each shape and colour each picture. The teacher tests the children%u2019s recall using six bricks e.g. stand a red brick on its end beside the square, stand a yellow brick beside the cuboid etc. Circulate as you call, observing what the children are doing.Learning outcomes%u2022 We are learning to sort, describe and name familiar two-dimensional shapes andthree-dimensional objects in the environment%u2022 We are learning that 3D and 2D shapes have different names depending on the properties and distinct features they possess%u2022 We are learning that 3D and 2D shapes can be sorted and discriminated according to their shape attributes%u2022 We are learning that 2D shapes are faces or flat representations of 3D objectsProcedureAssemble a junk box of shapes of various sizes and interest, which reflect circles, squares, triangles, rectangles, cubes, cuboids, spheres and cylinders e.g. bricks, packaging boxes such as a Toblerone, cube/cuboid boxes and cylindrical tins, toy vehicles, play houses, animals, tennis and golf balls, old phones etc. Include cardboard laminated cut outs of 2D shapes such as a circle, square, triangle and a rectangle.Gather the children in a circle on the floor and tip the contents of the box out onto the centre. What have we got here? There are lots of shapes. Can anybody tell me something about the shapes we are looking at? Explain using examples that a shape/object is two-dimensional when it only possesses the dimensions of length and width. Name and show examples within the pile.Explain using examples that a shape/object is three-dimensional when it possesses the dimensions of height, width and depth. Two dimensional objects only have two dimensions: length and width. A solid is any geometrical object with three-dimensions. Name and show examples.Have students look for %u2018flat%u2019 (2D) figures within structures (3D objects) from the junk pile e.g. explore a brick. Can they see a circle, a rectangle, a square, a cylinder etc? When a rectangle is given a third dimension it becomes a cuboid, a circle becomes a cylinder etc.%u2022 Have the children look down on a brick and draw what they see from above%u2022 Have them look face-on along the longer side and draw what they see%u2022 Have them look face-on along the shorter side and draw what they seeTheir drawings are 2D while the object is 3D. Children need to practice copying pictures composed of geometric shapes (e.g. a brick or a table setting) so that the main components are recognisable in shape, position, and orientation. Through drawing, they will come to recognise 2D figures as the faces of a given 3D object.56