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Shape and Data
Objectives
To name 3D shapes and identify their properties.
Resources
Abacus Workbook 2 | Sticky notes | 2 large plastic hoops | Packaging/objects including a cone, cylinder, sphere, cube, cuboids of different proportions and a square-based pyramid | 📄 2D pictures of 3D shapes | A3 paper
Vocabulary
cone | cylinder | sphere | cube | cuboid | square-based pyramid | faces | edges | vertices
Today's Lesson
Introduction
Watch this video to recap on properties of 3D shapes.
Show your student the packaging/objects. Try and include a cone, cylinder, sphere, cube, cuboids of different proportions and a square-based pyramid.
Say: ‘Let’s sort these shapes into those with flat faces and those with curved faces.’
Label the 2 hoops ‘flat faces’ and ‘curved faces’ and place on the floor.
Ask, ‘Where do you think we should put the cylinder?’
Overlap the 2 hoops to form a Venn diagram and so that the cylinder can be in both hoops.
Ask your student to sort the other objects into the appropriate parts of the Venn diagram.
Next, talk about the packaging/objects by asking: ‘Which sets of shapes do you think will roll better? Why? And which will slide better? Why? Which shape do you think will stack well? Why?’
Try out your student's ideas.
Then show the pyramid and ask, ‘This shape has flat faces, but do you think it would be good to build with?’
Explain that people don’t use this shape like a brick for building, but the ancient Egyptians made buildings in this shape. Do they know what these buildings were called?
Explain that this shape is called a square-based pyramid, just like the Egyptians’ pyramids. What shapes are its faces? Pyramids can have other shapes on the bottom but the other faces are always triangles.
Write the shape’s name on a sticky note and attach it to the package or object.
Next, discuss the cuboids.
Say: ‘Notice how the shapes might look a bit different, for example, a square-based biscuit tin might look different from a shoe box, but both are cuboids because they have 6 faces which are oblongs and squares.’
Point out that opposite faces of the cuboids are the same shape and size.
Main Activity
Ask your student to draw 2 overlapping circles on A3 paper to form a Venn diagram, and to label them, as you did in the Introduction, with their choice of properties. For example: has 3 faces, has more than 4 faces, has 1 flat face, etc
Your student should then sort packaging/objects in different ways.
You might like to keep a photographic record of this.
Then, using the 📄 2D pictures of 3D shapes sheet, your student should cut out and stick pictures onto their Venn diagram, under their own headings, writing the name of each shape on to the appropriate picture.
Workbook
To help your student consolidate their learning from today, please ask them to complete the activities on page 22 of Abacus Workbook 2.