Student or Learner
In school, there is a workbook with all the words there for children to jot down the new word they learn and they need to know how to pronounce and spell. They call it spelling journal.
How about :
the workbook with all the words there for children to jot down the new word they learn and children need to know how to pronounce only.
You could call it a pronunciation journal, but as they're writing them down, isn't spelling also involved? Why not call it a vocab book and simplify things.