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.