\( \DeclareMathOperator{cosec}{cosec} \)

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Here are some specific activities, investigations or visual aids we have picked out. Click anywhere in the grey area to access the resource.

- Rotational Symmetry Video This video provides a description of rotational symmetry and shows how I calculate the order of rotational symmetry.
- Snowflake Generator See how the hexagon can be transformed into a snowflake with some basic translations.
- Xmas Symmetry Pairs Match the pictures with the description of their symmetry.
- Polygons Name the polygons and show the number of lines and order of rotational symmetry.
- Angle Parallels Understand and use the relationship between parallel lines and alternate and corresponding angles.
- Rotational Symmetry Pairs The traditional pairs or pelmanism game adapted to test knowledge of rotational symmetry.
- Shapes In The Stars Join up the stars to find the hidden regular polygons.
- Polygon Angles Video A concise reminder about angles, both interior and exterior, in regular and irregular polygons.
- Polygon Angles A mixture of problems related to calculating the interior and exterior angles of polygons.
- Tessellations Drag the shapes onto the canvas to create tessellating patterns then try the tessellations quiz.
- Polygon Pieces Arrange the nine pieces of the puzzle on the grid to make different polygons.
- Constructions Construct the diagrams from the given information then check your accuracy.
- Polygon Properties Connect the names of the polygons with the descriptions of their properties.
- The Great Dodecahedron Pupils are not allowed to use their hands to point but must describe fully any shapes they can see in this picture.
- Symmetry Table Challenge In how many cells can you draw symmetrical shapes with the given row and column headings?
- Ruler and Compass Constructions Video A demonstration of standard ruler and compass constructions.
- Geometry Toolbox Create your own dynamic geometrical diagrams using this truly amazing tool from GeoGebra.

Click on a topic below for suggested lesson Starters, resources and activities from Transum.

- Geometry Geometry is a branch of mathematics concerned with questions of shape, size, relative position of figures, and the properties of space. Geometry arose independently in a number of early cultures as a body of practical knowledge concerning lengths, areas, and volumes, with elements of a formal mathematical science emerging in the West as early 6th Century BC. See also the topics of Angles, Area, Bearings, Circles, Enlargements, Mensuration, Pythagoras, Shape, Shape (3D), Symmetry, Transformations and Trigonometry.
- Shape This topic is aimed at the learners of basic geometry, which is the study of size, shape and position. More than other areas of mathematics this topic helps pupils to learn about the definitions and properties of basic shapes. There are many activities provided ranging from simple shape naming games to applying more advanced formulas and theorems. The most popular activities however are those involving pupils to count the number of triangles or rectangles in patterns and come up with effective strategies and justifications for their answers. The work pupils produce for this topic can make very good display material. The use of colour can enhance the diagrams and make the learning environment more conducive to study. There are many connections between the mathematics of shape and Art. There are fascinating works of art based on symmetry, tessellations and transformations.
- Symmetry This topic covers line symmetry and rotational symmetry. The innate appeal of symmetry can be found in our reactions to finding symmetry in natural objects, such as precisely formed crystals or seashells. Symmetry in art is another source of delight. Understanding the mathematics of symmetry is the focus of this topic. Accurately drawing the reflection of an object requires an understanding of the relative positions of reflected points. Defining the position of the mirror line is important to find the position and orientation of the reflection. The Wrapping Paper lesson starter makes it clear that for rotational symmetry, the position of the centre of rotation is very important. Work on this topic can produce some excellent display work!

How do you teach this topic? Do you have any tips or suggestions for other teachers? It is always useful to receive feedback and helps make these free resources even more useful for Maths teachers anywhere in the world. Click here to enter your comments.