Have a look at these fraction boards from the Fractions Bits and Parts teaching resource available on New Zealand maths:
These are such an effective first step in developing children’s understanding of denominators, allowing them to explore, discover and make sense of what fractions represent. Here are the teaching resources, also available on the NZ maths page:
These are fantastic resources which can be used to develop conceptual understanding of fractions at any age or stage.
It would be great to hear your thoughts and comments!