If the shape above is enlarged with a scale factor of 2 click on the points that
could be the centre of enlargement if the image does not reach outside the grid.
Your Image has broken out of the grid !!!
Try again with the same shape Try again with a different shape|
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Mathematicians are not the people who find Maths easy; they are the people who enjoy how mystifying, puzzling and hard it is. Are you a mathematician? Comment recorded on the 14 September 'Starter of the Day' page by Trish Bailey, Kingstone School: "This is a great memory aid which could be used for formulae or key facts etc - in any subject area. The PICTURE is such an aid to remembering where each number or group of numbers is - my pupils love it! Comment recorded on the 1 August 'Starter of the Day' page by Peter Wright, St Joseph's College: "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. |
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Featured ActivityConnect 4 Factors A mathematical version of the popular Connect 4 game based on getting four numbers with a common factor in a line. Fun for one, two or a whole class of pupils. |
Numeracy"Numeracy is a proficiency which is developed mainly in Mathematics but also in other subjects. It is more than an ability to do basic arithmetic. It involves developing confidence and competence with numbers and measures. It requires understanding of the number system, a repertoire of mathematical techniques, and an inclination and ability to solve quantitative or spatial problems in a range of contexts. Numeracy also demands understanding of the ways in which data are gathered by counting and measuring, and presented in graphs, diagrams, charts and tables." Secondary National Strategy, Mathematics at key stage 3 |
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Scan the QR code below to visit the online version of this activity.
https://www.Transum.org/go/?Num=913
Click on all the points that could be the centre of enlargement of the shape if the image does not go off the grid.
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❎Level 1 - Enlargement scale factor 2
Level 2 - Enlargement scale factor 3
Level 3 - Enlargement scale factor -1
Level 4 - Enlargement scale factor 2 without image drawing
Level 5 - Enlargement scale factor 3 without image drawing
Level 6 - Enlargement scale factor -1 without image drawing
More on Enlargements including lesson Starters, visual aids, investigations and self-marking exercises.
The phrase Blow Up has two meanings. It could me to enlarge as in “please blow up this photograph to A3 size” but it could also mean to explode. Both meanings are used in this challenge.
In Mathematics, when a shape (object) is enlarged, the position of the enlargement (image) is determined by the position of the centre of enlargement. Think of a torch (flashlight) being held at the centre of enlargement shining on the shape and casting a shadow behind it. The position of the shadow will change as the torch moves.
The objective of this challenge is to find all the dots on the grid which could possibly be the centre of enlargement if the image can be drawn completely on the grid. You will see and hear an explosion if the image created breaks out of the grid.
It is recommended the simpler Enlargements exercise (part of the Transformations exercise) is completed before taking on this challenge.
Before attempting this challenge you should already be good at drawing enlargements (part of the Transformations exercise). Below is an excerpt from the help video created for the Transformations exercise.
Answers to this exercise are available lower down this page when you are logged in to your Transum account. If you don’t yet have a Transum subscription one can be very quickly set up if you are a teacher, tutor or parent.
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