Other
Ghost Letter Digraphs
This Prezi presentation gives examples of the silent-letter digraphs kn, wr, and gn.
Quizlet
Quizlet: Digraphs Gh, Ph, Kn, Wr
This Quizlet study set provides six different ways for students to master the digraphs gh, ph, kn, and wr. Flashcards, games, and a test focus on fifteen words which contain these letter combinations.
Other
Growing With Grammar: Consonant Digraphs Wr, Kn, and Ck; Schwa Sound [Pdf]
This file contains two five-day spelling/vocabulary lessons. The first lesson covers words which contain the wr, kn, and ck digraphs; the second lesson covers words which contain the schwa sound. Each lesson contains a list of words with...