Opportunities for incidental learning

We have added magnetic letters and numbers to all of the radiators throughout school.  It is having an interesting effect.  Some of our younger children are children are choosing to cluster around the radiators at lunchtime (not because it's cold) and make words/ number problems.  They are challenging each other to make bigger words and solve bigger number problems.  Similar is happening in the classrooms when the younger children are given independent learning time.