‘…the whole secret of spelling lies in the habit of visualizing words from memory… The gift of spelling depends upon the power the eye possesses to ‘take’ (in a photographic sense) a detailed picture of a word; and this is a power and habit, which must be cultivated in children from the first.’
After a solid foundation in reading and copywork, Charlotte Mason relied on a method called prepared (or studied) dictation to teach spelling to her students.
The teacher parent selects phrases, sentences, and passages that target particular words or spelling conventions. As students mature, they transition to selecting their own passages for copying and begin their own Commonplace Book.
Passages for Copywork and Dictation should ideally be drawn from the literature students are reading in their daily lessons. Several copywork and dictation programs do exist in the public domain, however, which provide preselected passages tailored to fit a comprehensive spelling program. Links for these are provided below.
Wheeler – Graded Studies in Authors: a complete speller (http://books.google.com/books?id=sE4XAAAAIAAJ or https://archive.org/details/wheelersgradeds00wheegoog)
Wagenen – The Modern Speller Book 1 (2nd, 3rd and 4th Year) (http://books.google.com/books?id=-vIAAAAAYAAJ or https://archive.org/details/modernspeller02wagegoog)
Wagenen – The Modern Speller Book 2 (5th, 6th, 7th and 8th Year) (http://books.google.com/books?id=CPMAAAAAYAAJ or https://archive.org/details/modernspeller03wagegoog)
Rossman (1905) – The Dictation Spelling Book (https://books.google.com/books?id=2tsRAAAAIAAJ or https://archive.org/details/dictationspelli01millgoog)
Rossman (1907) – The Dictation Spelling Book Vol 1 (https://books.google.com/books?id=H78AAAAAYAAJ or https://archive.org/details/dictationspelli00millgoog)
Rossman (1907) – The Dictation Spelling Book Vol 2 (https://books.google.com/books?id=mOdEAAAAIAAJ)