I haven’t posted on the blog in 2015 - which there’s really no excuse for.
I have loads of ideas for posts so to kick things off the site has been redesigned and is now hosted on GitHub Pages. It’s gone from this…
… to this …
It’s still work in progress, but it’s getting there.
Some of the resources have been reorganised behind the scenes, so I hope this doesn’t cause anything to break. This is to get things ready for the presentations section of the site.
Having read a superb post about the Singapore Bar Model from William Emeny I thought I would share these diagrams for introducing equivalent fractions:
Students identify that of the diagram is shaded blue.
With each square now shown in two pieces, they can then see that is shaded and that this is equivalent to .
Once they are happy with the second step then there isn’t much of a leap to showing that .
Whilst these diagrams are given in a slightly different format to the bar model, the idea is similar.
Here is a small presentation that may be useful.
Here’s a starter inspired by a problem in the excellent Cabinet of Curiosities book by Ian Stewart.
The names of 10 students are displayed around the diagram. Start from ‘Mister Mort’ and move clockwise along one edge for each letter as a name is spelled out. You should finish on that person’s name.
create your own
It’s unlikely that your name is also Mr Mort and that you happen to teach a Michelangelo, so you can create your own version here.
- follow the link to Overleaf
- replace the names at the top of the file with words of length 3 - 12 (I have had to use first names and last names in the past to make up the longer names)
- make sure the starting point has length 10
- the preview should automatically update
- download the pdf from the menu at the top
NOTE: The above file is shared on Overleaf and can be edited by anyone, so if the file has been edited and is not usable then there is a read-only version here. You will need to copy the code, create a new paper and paste it into the new document.