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Geometry is an area of mathematic that looks at the properties of shapes. This page has a range of geometry ideas for you to explore through videos, games, questions and tasks.
Two Dimensional Shapes (2D Shapes)
Two dimensional shapes are flat shapes. They are two dimensional because they have two dimension height and width. Two dimensional shapes have sides and angles. Have a look at the shapes below. How many sides does each shape have? How many angles does each shape have?
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Create pictures using Shape overlay picture studio.
Task a screenshot describe the picture that you created and post your picture and description to your blog.
See if you can use details to describe your shapes include the number of side and angles that your shapes have.
Three Dimensional Shapes (3D Shapes)
Are solid shapes. These shapes have three dimension height, width and depth. Three dimensional shapes have faces, edges and vertices. Have a look at the shapes below. How many faces does each shape have? How many edges does each shape have? and how many vertices?
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Practice locating the number of faces on 3D shapes.
Painting the shapes faces will help you to check you answers.
Cutting and folding
Cutting a folding is a skill that can help us to create 2D and 3D shapes. Watch the videos below for some examples.
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Practice cutting shapes using this online tool.
Tessellation
Tessellations are repeated patterns that use the same shape to cover a space. Tessellations can be found all around us. There are tessellations in brick paths and graph paper. Where else can you see Tessellations? Which shapes Tessellate?
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Reflection and reflective symmetry
Reflection is everywhere, thing can be reflection in mirrors, in glass or in water. If you look at the picture it shows three refections. The black line is the mirror line also known as the line of symmetry. If you fold the shapes on this line both parts are the same, this is called reflective symmetry.
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Use this online tool to find the lines of symmetry in the object. How many lines of symmetry does each object have?
Rotation and Rotational symmetry
Rotation is the turning of an object. When an object or shape has rotational symmetry it looks the same as it did originally. The number of times that it looks the same when rotated in a full circle is called order. How is the order of a square? What is the oder of a triangle?
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Have a look at this online tools. You will be looking at shapes with rotational symmetry.
Geometry Garden
Have a look outside. Can you find examples of tessellation and rotational symmetry?
Take the still you have learnt about reflection, rotation, tessellation, shapes and cutting and folding to create a garden picture.
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