Throughout the book every possible opportunity to present root words and
derivatives together has been taken. Lessons 6, 8, 9, 13, 20, 30, 55,
67, and many others illustrate this feature. It was not possible to
present derivatives in all cases, or to present all that might well be
discussed with each root word. A great opportunity for splendid word
building exists in connection with the spelling lesson. The resourceful
teacher will supply additional words of this class at every opportunity,
calling especial attention to any changes of form because of the
formation of the derivative. This will mean not only a larger spelling
vocabulary but a larger speaking vocabulary.
Teaching synonyms also furnishes a chance to greatly increase the
speaking vocabulary.