Question: what are gpcs in letters and sounds?
Answer: Grapheme - A way of writing down a phoneme. Graphemes can be made up from 1 letter e.g. p, 2 letters e.g. sh, 3 letters e.g. tch or 4 letters e.g ough. GPC - This is short for Grapheme Phoneme Correspondence. Knowing a GPC means being able to match a phoneme to a grapheme and vice versa.