Transum Maths Software

Symmetry

There are 366 different Starters of The Day, many to choose from. You will find in the left column below some starters on the topic of Symmetry. In the right column below are links to related online activities, videos and teacher resources.

A lesson starter does not have to be on the same topic as the main part of the lesson or the topic of the previous lesson. It is often very useful to revise or explore other concepts by using a starter based on a totally different area of Mathematics.

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Symmetry Starters:

Dice Reflections: A dice is reflected in two mirrors. What numbers can be seen?

Freemason's Cipher: Find symmetric words in this ancient cipher.

Match Fish: A classic matchstick puzzle designed to challenge your spacial awareness.

Mirror Maths: The bottom half of some symmetrical calculations are shown above. Can you work out the answers?

Reflective Cat: On squared paper copy the drawing of the face then reflect it in three different lines.

Rotational Symmetry: Draw a pattern with rotational symmetry of order 6 but no line symmetry.

Wrapping Paper: Find the order of rotational symmetry of the repeating pattern.

 

Small images of these Starters | | |  Complete Index of Starters

Featured Activity

Vinculum

Vinculum

This activity comprises of five challenges each one requiring you to type in one more fraction than the previous challenge and each starting with a different fraction. The starting fractions are one tenth, one quarter, one third, one half and four sevenths.

 

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"An absolutely brilliant resource. Only recently been discovered but is used daily with all my classes. It is particularly useful when things can be saved for further use. Thank you!"

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"Love using the Starter of the Day activities to get the students into Maths mode at the beginning of a lesson. Lots of interesting discussions and questions have arisen out of the activities.
Thanks for such a great resource!"

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"We all love your starters. It is so good to have such a collection. We use them for all age groups and abilities. Have particularly enjoyed KIM's game, as we have not used that for Mathematics before. Keep up the good work and thank you very much
Best wishes from Inger Kisby"

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"A Maths colleague introduced me to your web site and I love to use it. The questions are so varied I can use them with all of my classes, I even let year 13 have a go at some of them. I like being able to access the whole month so I can use favourites with classes I see at different times of the week. Thanks."

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"I think this is a brilliant website as all the students enjoy doing the puzzles and it is a brilliant way to start a lesson."

Comment recorded on the 19 October 'Starter of the Day' page by E Pollard, Huddersfield:

"I used this with my bottom set in year 9. To engage them I used their name and favorite football team (or pop group) instead of the school name. For homework, I asked each student to find a definition for the key words they had been given (once they had fun trying to guess the answer) and they presented their findings to the rest of the class the following day. They felt really special because the key words came from their own personal information."

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To the creator of this website and all of those teachers who have contributed to it, I would like to say a big THANK YOU!!! :)."

Notes:

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!

Symmetry Teacher Resources:

Kite Maths: Can you make a kite shape from a single A4 size sheet of paper using only three folds?

Polygons: Name the polygons and show the number of lines and order of rotational symmetry.

Symmetry Activities:

Pattern Clues: An interactive activity challenging you to reproduce a pattern of coloured squares according to given clues.

Polygons: Name the polygons and show the number of lines and order of rotational symmetry.

Rotational Symmetry Pairs: The traditional pairs or pelmanism game adapted to test knowledge of rotational symmetry.

Transformations: Draw transformations online and have them instantly checked. Includes reflections, translations, rotations and enlargements.

Symmetry Videos:

Symmetry, reality's riddle: Marcus du Sautoy' TED talk illustrating some aspects of symmetry.

The science of symmetry: An illustrated talk about the notion of symmetry and how it applies to nature.

Symmetry Worksheets/Printables:

Cat Face Reflections: A worksheet containing pictures and shapes to be reflected in given lines.

Polybragging Cards: Printable cards for the Polybragging game. Use the properties of polygons to win.

Symmetry External Links:

Links to other websites containing resources for Symmetry are provided for those logged into 'Transum Mathematics'. Subscribing also opens up the opportunity for you to add your own links to this panel. You can sign up using one of the buttons below:

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Recently Updated

Arithmetic Sequences

Arithmetic Sequences

An exercise on linear sequences including finding an expression for the nth term and the sum of n terms. So far this activity has been accessed 11302 times and 2145 people have earned a Transum Trophy for completing it.

 

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