Can you imagine him getting bigger?
Imagine he was magnified (enlarged) to twice his normal height (and width and depth). Make an estimate of how heavy (in kilograms) he would be.
Photograph by Daniel Ogren and licensed under the Creative Commons Attribution 2.0 Generic license. more...
Teacher: Change the celebrity featured in this starter to suit your class: David Beckham, Beyoncé, Rafael Nadal or Spiderman
Tweet about this starter  Share 
Topics: Starter  Enlargements  Estimating
How did you use this starter? Can you suggest
how teachers could present or develop this resource? Do you have any comments? It is always useful to receive
feedback and helps make this free resource even more useful for Maths teachers anywhere in the world.
Click here to enter your comments.
If you don't have the time to provide feedback we'd really appreciate it if you could give this page a score! We are constantly improving and adding to these starters so it would be really helpful to know which ones are most useful. Simply click on a button below:
This starter has scored a mean of 2.7 out of 5 based on 244 votes.
Previous Day  This starter is for 1 June  Next Day
If the dimensions of an object double, its volume increases by a factor of eight. We would expect him to be 8 times heavier.
Teacher, do your students have
access to computers? 

Here a concise URL for a version of this page without the comments.
Here is the URL which will take them to a related student activity.
Transum.org/go/?to=Scalefactors
Casio Classwiz CalculatorThere is currently a lot of talk about this new calculator being the best in its price range for use in the Maths classroom. The new ClassWiz features a highresolution display making it easier to view numerical formulas and symbols but it isn't a graphical calculator as such (it has the capacity to draw graphs on your smart phone or tablet, via a scannable QR code and an app). As well as basic spreadsheet mode and an equation solving feature you also get the ability to solve quadratic, cubic or quartic polynomial inequalities and the answer is given just as it should be written down, using the correct inequality symbols! This calculator has a highperformance processor and twice the memory of previous models ensuring speedy operation and superior computational power.more... 