Laura Creighton <l...@openend.se> writes:

> The great sticking point for the children I am teaching is '*' means
> multiplication. […] that one can swap out a particular convention 'x
> means multiply' and swap in another one '* means multiply' while
> leaving the underlying truth unchanged.

Perhaps it would be easier if you point out that ‘x’ doesn't mean
multiply either, and they've *already* been substituting that symbol
instead of the correct ‘×’ for multiply.

-- 
 \     “Our task must be to free ourselves from our prison by widening |
  `\    our circle of compassion to embrace all humanity and the whole |
_o__)                       of nature in its beauty.” —Albert Einstein |
Ben Finney

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