"To help children learn all of the letter-sound correspondences, some phonics programs teach mnemonic devices. For example, in the Letterland program (Wendon,1992), the shape of K is drawn as the body of "kicking king" whose first sound, /k/, is the sound of the letter. The shape of S is drawn as the body of "Sammy Snake." In this way, an easily remembered mediator is taught to help children connect the shape of the letter to its sound. Research shows that this makes it easier for the children to learn the correspondences (Ehri, Deffer, & Wilce, 1984)"
"Integrated, or embedded, mnemonics is a promising approach for teaching letter sounds (de Graaf, Verhoeven, Bosman, &Hasselman, 2007; Ehri, Deffner & Wilce, 1984; Shmidman & Ehri,2010). Integrated letter mnemonics are letter shapes embedded in a familiar action, object, or character. For example in the Letterland program (Manson & Wendon, 2003), the letter "d" is embedded in a picture of a duck named "dippy". The word "duck" contains the phoneme that the letter "d" typically represents. Three small-scale experimental studies have shown that integrated mnemonics promoted greater learning of letter sounds than did carefully matched alternatives (de Graaff et al., 2007; Ehri, Deffner, & Wilce, 1984;Shmidman & Ehri, 2010)."